21484050

素因数分解:

$2^1\times 3^1\times 5^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:145

約数の個数: 144

約数和(自身を含む): 64460160

約数和(自身を除く): 42976110

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 37, 42, 49, 50, 70, 74, 75, 79, 98, 105, 111, 147, 150, 158, 175, 185, 210, 222, 237, 245, 259, 294, 350, 370, 395, 474, 490, 518, 525, 553, 555, 735, 777, 790, 925, 1050, 1106, 1110, 1185, 1225, 1295, 1470, 1554, 1659, 1813, 1850, 1975, 2370, 2450, 2590, 2765, 2775, 2923, 3318, 3626, 3675, 3871, 3885, 3950, 5439, 5530, 5550, 5846, 5925, 6475, 7350, 7742, 7770, 8295, 8769, 9065, 10878, 11613, 11850, 12950, 13825, 14615, 16590, 17538, 18130, 19355, 19425, 20461, 23226, 27195, 27650, 29230, 38710, 38850, 40922, 41475, 43845, 45325, 54390, 58065, 61383, 73075, 82950, 87690, 90650, 96775, 102305, 116130, 122766, 135975, 143227, 146150, 193550, 204610, 219225, 271950, 286454, 290325, 306915, 429681, 438450, 511525, 580650, 613830, 716135, 859362, 1023050, 1432270, 1534575, 2148405, 3069150, 3580675, 4296810, 7161350, 10742025, 21484050]

約数ペア:

[(1, 21484050), (2, 10742025), (3, 7161350), (5, 4296810), (6, 3580675), (7, 3069150), (10, 2148405), (14, 1534575), (15, 1432270), (21, 1023050), (25, 859362), (30, 716135), (35, 613830), (37, 580650), (42, 511525), (49, 438450), (50, 429681), (70, 306915), (74, 290325), (75, 286454), (79, 271950), (98, 219225), (105, 204610), (111, 193550), (147, 146150), (150, 143227), (158, 135975), (175, 122766), (185, 116130), (210, 102305), (222, 96775), (237, 90650), (245, 87690), (259, 82950), (294, 73075), (350, 61383), (370, 58065), (395, 54390), (474, 45325), (490, 43845), (518, 41475), (525, 40922), (553, 38850), (555, 38710), (735, 29230), (777, 27650), (790, 27195), (925, 23226), (1050, 20461), (1106, 19425), (1110, 19355), (1185, 18130), (1225, 17538), (1295, 16590), (1470, 14615), (1554, 13825), (1659, 12950), (1813, 11850), (1850, 11613), (1975, 10878), (2370, 9065), (2450, 8769), (2590, 8295), (2765, 7770), (2775, 7742), (2923, 7350), (3318, 6475), (3626, 5925), (3675, 5846), (3871, 5550), (3885, 5530), (3950, 5439)]