21621570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{347}}^1$

素因数の和:455

約数の個数: 64

約数和(自身を含む): 54521856

約数和(自身を除く): 32900286

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 67, 93, 134, 155, 186, 201, 310, 335, 347, 402, 465, 670, 694, 930, 1005, 1041, 1735, 2010, 2077, 2082, 3470, 4154, 5205, 6231, 10385, 10410, 10757, 12462, 20770, 21514, 23249, 31155, 32271, 46498, 53785, 62310, 64542, 69747, 107570, 116245, 139494, 161355, 232490, 322710, 348735, 697470, 720719, 1441438, 2162157, 3603595, 4324314, 7207190, 10810785, 21621570]

約数ペア:

[(1, 21621570), (2, 10810785), (3, 7207190), (5, 4324314), (6, 3603595), (10, 2162157), (15, 1441438), (30, 720719), (31, 697470), (62, 348735), (67, 322710), (93, 232490), (134, 161355), (155, 139494), (186, 116245), (201, 107570), (310, 69747), (335, 64542), (347, 62310), (402, 53785), (465, 46498), (670, 32271), (694, 31155), (930, 23249), (1005, 21514), (1041, 20770), (1735, 12462), (2010, 10757), (2077, 10410), (2082, 10385), (3470, 6231), (4154, 5205)]