21455616840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{2347}}^1\times {\mathrm{10883}}^1$

素因数の和:13251

約数の個数: 128

約数和(自身を含む): 73600220160

約数和(自身を除く): 52144603320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 2347, 4694, 7041, 9388, 10883, 11735, 14082, 16429, 18776, 21766, 23470, 28164, 32649, 32858, 35205, 43532, 46940, 49287, 54415, 56328, 65298, 65716, 70410, 76181, 82145, 87064, 93880, 98574, 108830, 130596, 131432, 140820, 152362, 163245, 164290, 197148, 217660, 228543, 246435, 261192, 281640, 304724, 326490, 328580, 380905, 394296, 435320, 457086, 492870, 609448, 652980, 657160, 761810, 914172, 985740, 1142715, 1305960, 1523620, 1828344, 1971480, 2285430, 3047240, 4570860, 9141720, 25542401, 51084802, 76627203, 102169604, 127712005, 153254406, 178796807, 204339208, 255424010, 306508812, 357593614, 383136015, 510848020, 536390421, 613017624, 715187228, 766272030, 893984035, 1021696040, 1072780842, 1430374456, 1532544060, 1787968070, 2145561684, 2681952105, 3065088120, 3575936140, 4291123368, 5363904210, 7151872280, 10727808420, 21455616840]

約数ペア:

[(1, 21455616840), (2, 10727808420), (3, 7151872280), (4, 5363904210), (5, 4291123368), (6, 3575936140), (7, 3065088120), (8, 2681952105), (10, 2145561684), (12, 1787968070), (14, 1532544060), (15, 1430374456), (20, 1072780842), (21, 1021696040), (24, 893984035), (28, 766272030), (30, 715187228), (35, 613017624), (40, 536390421), (42, 510848020), (56, 383136015), (60, 357593614), (70, 306508812), (84, 255424010), (105, 204339208), (120, 178796807), (140, 153254406), (168, 127712005), (210, 102169604), (280, 76627203), (420, 51084802), (840, 25542401), (2347, 9141720), (4694, 4570860), (7041, 3047240), (9388, 2285430), (10883, 1971480), (11735, 1828344), (14082, 1523620), (16429, 1305960), (18776, 1142715), (21766, 985740), (23470, 914172), (28164, 761810), (32649, 657160), (32858, 652980), (35205, 609448), (43532, 492870), (46940, 457086), (49287, 435320), (54415, 394296), (56328, 380905), (65298, 328580), (65716, 326490), (70410, 304724), (76181, 281640), (82145, 261192), (87064, 246435), (93880, 228543), (98574, 217660), (108830, 197148), (130596, 164290), (131432, 163245), (140820, 152362)]