21671790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3329}}^1$

素因数の和:3377

約数の個数: 64

約数和(自身を含む): 61378560

約数和(自身を除く): 39706770

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 155, 186, 210, 217, 310, 434, 465, 651, 930, 1085, 1302, 2170, 3255, 3329, 6510, 6658, 9987, 16645, 19974, 23303, 33290, 46606, 49935, 69909, 99870, 103199, 116515, 139818, 206398, 233030, 309597, 349545, 515995, 619194, 699090, 722393, 1031990, 1444786, 1547985, 2167179, 3095970, 3611965, 4334358, 7223930, 10835895, 21671790]

約数ペア:

[(1, 21671790), (2, 10835895), (3, 7223930), (5, 4334358), (6, 3611965), (7, 3095970), (10, 2167179), (14, 1547985), (15, 1444786), (21, 1031990), (30, 722393), (31, 699090), (35, 619194), (42, 515995), (62, 349545), (70, 309597), (93, 233030), (105, 206398), (155, 139818), (186, 116515), (210, 103199), (217, 99870), (310, 69909), (434, 49935), (465, 46606), (651, 33290), (930, 23303), (1085, 19974), (1302, 16645), (2170, 9987), (3255, 6658), (3329, 6510)]