21792260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{601}}^1$

素因数の和:661

約数の個数: 72

約数和(自身を含む): 54765144

約数和(自身を除く): 32972884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 98, 140, 148, 185, 196, 245, 259, 370, 490, 518, 601, 740, 980, 1036, 1202, 1295, 1813, 2404, 2590, 3005, 3626, 4207, 5180, 6010, 7252, 8414, 9065, 12020, 16828, 18130, 21035, 22237, 29449, 36260, 42070, 44474, 58898, 84140, 88948, 111185, 117796, 147245, 155659, 222370, 294490, 311318, 444740, 588980, 622636, 778295, 1089613, 1556590, 2179226, 3113180, 4358452, 5448065, 10896130, 21792260]

約数ペア:

[(1, 21792260), (2, 10896130), (4, 5448065), (5, 4358452), (7, 3113180), (10, 2179226), (14, 1556590), (20, 1089613), (28, 778295), (35, 622636), (37, 588980), (49, 444740), (70, 311318), (74, 294490), (98, 222370), (140, 155659), (148, 147245), (185, 117796), (196, 111185), (245, 88948), (259, 84140), (370, 58898), (490, 44474), (518, 42070), (601, 36260), (740, 29449), (980, 22237), (1036, 21035), (1202, 18130), (1295, 16828), (1813, 12020), (2404, 9065), (2590, 8414), (3005, 7252), (3626, 6010), (4207, 5180)]