21164640

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{6299}}^1$

素因数の和:6324

約数の個数: 96

約数和(自身を含む): 76204800

約数和(自身を除く): 55040160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 6299, 12598, 18897, 25196, 31495, 37794, 44093, 50392, 62990, 75588, 88186, 94485, 100784, 125980, 132279, 151176, 176372, 188970, 201568, 220465, 251960, 264558, 302352, 352744, 377940, 440930, 503920, 529116, 604704, 661395, 705488, 755880, 881860, 1007840, 1058232, 1322790, 1410976, 1511760, 1763720, 2116464, 2645580, 3023520, 3527440, 4232928, 5291160, 7054880, 10582320, 21164640]

約数ペア:

[(1, 21164640), (2, 10582320), (3, 7054880), (4, 5291160), (5, 4232928), (6, 3527440), (7, 3023520), (8, 2645580), (10, 2116464), (12, 1763720), (14, 1511760), (15, 1410976), (16, 1322790), (20, 1058232), (21, 1007840), (24, 881860), (28, 755880), (30, 705488), (32, 661395), (35, 604704), (40, 529116), (42, 503920), (48, 440930), (56, 377940), (60, 352744), (70, 302352), (80, 264558), (84, 251960), (96, 220465), (105, 201568), (112, 188970), (120, 176372), (140, 151176), (160, 132279), (168, 125980), (210, 100784), (224, 94485), (240, 88186), (280, 75588), (336, 62990), (420, 50392), (480, 44093), (560, 37794), (672, 31495), (840, 25196), (1120, 18897), (1680, 12598), (3360, 6299)]