21568260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{577}}^1$

素因数の和:685

約数の個数: 96

約数和(自身を含む): 69914880

約数和(自身を除く): 48346620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 89, 105, 140, 178, 210, 267, 356, 420, 445, 534, 577, 623, 890, 1068, 1154, 1246, 1335, 1731, 1780, 1869, 2308, 2492, 2670, 2885, 3115, 3462, 3738, 4039, 5340, 5770, 6230, 6924, 7476, 8078, 8655, 9345, 11540, 12117, 12460, 16156, 17310, 18690, 20195, 24234, 34620, 37380, 40390, 48468, 51353, 60585, 80780, 102706, 121170, 154059, 205412, 242340, 256765, 308118, 359471, 513530, 616236, 718942, 770295, 1027060, 1078413, 1437884, 1540590, 1797355, 2156826, 3081180, 3594710, 4313652, 5392065, 7189420, 10784130, 21568260]

約数ペア:

[(1, 21568260), (2, 10784130), (3, 7189420), (4, 5392065), (5, 4313652), (6, 3594710), (7, 3081180), (10, 2156826), (12, 1797355), (14, 1540590), (15, 1437884), (20, 1078413), (21, 1027060), (28, 770295), (30, 718942), (35, 616236), (42, 513530), (60, 359471), (70, 308118), (84, 256765), (89, 242340), (105, 205412), (140, 154059), (178, 121170), (210, 102706), (267, 80780), (356, 60585), (420, 51353), (445, 48468), (534, 40390), (577, 37380), (623, 34620), (890, 24234), (1068, 20195), (1154, 18690), (1246, 17310), (1335, 16156), (1731, 12460), (1780, 12117), (1869, 11540), (2308, 9345), (2492, 8655), (2670, 8078), (2885, 7476), (3115, 6924), (3462, 6230), (3738, 5770), (4039, 5340)]