21036120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{317}}^1$

素因数の和:417

約数の個数: 128

約数和(自身を含む): 73267200

約数和(自身を除く): 52231080

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, 79, 84, 105, 120, 140, 158, 168, 210, 237, 280, 316, 317, 395, 420, 474, 553, 632, 634, 790, 840, 948, 951, 1106, 1185, 1268, 1580, 1585, 1659, 1896, 1902, 2212, 2219, 2370, 2536, 2765, 3160, 3170, 3318, 3804, 4424, 4438, 4740, 4755, 5530, 6340, 6636, 6657, 7608, 8295, 8876, 9480, 9510, 11060, 11095, 12680, 13272, 13314, 16590, 17752, 19020, 22120, 22190, 25043, 26628, 33180, 33285, 38040, 44380, 50086, 53256, 66360, 66570, 75129, 88760, 100172, 125215, 133140, 150258, 175301, 200344, 250430, 266280, 300516, 350602, 375645, 500860, 525903, 601032, 701204, 751290, 876505, 1001720, 1051806, 1402408, 1502580, 1753010, 2103612, 2629515, 3005160, 3506020, 4207224, 5259030, 7012040, 10518060, 21036120]

約数ペア:

[(1, 21036120), (2, 10518060), (3, 7012040), (4, 5259030), (5, 4207224), (6, 3506020), (7, 3005160), (8, 2629515), (10, 2103612), (12, 1753010), (14, 1502580), (15, 1402408), (20, 1051806), (21, 1001720), (24, 876505), (28, 751290), (30, 701204), (35, 601032), (40, 525903), (42, 500860), (56, 375645), (60, 350602), (70, 300516), (79, 266280), (84, 250430), (105, 200344), (120, 175301), (140, 150258), (158, 133140), (168, 125215), (210, 100172), (237, 88760), (280, 75129), (316, 66570), (317, 66360), (395, 53256), (420, 50086), (474, 44380), (553, 38040), (632, 33285), (634, 33180), (790, 26628), (840, 25043), (948, 22190), (951, 22120), (1106, 19020), (1185, 17752), (1268, 16590), (1580, 13314), (1585, 13272), (1659, 12680), (1896, 11095), (1902, 11060), (2212, 9510), (2219, 9480), (2370, 8876), (2536, 8295), (2765, 7608), (3160, 6657), (3170, 6636), (3318, 6340), (3804, 5530), (4424, 4755), (4438, 4740)]