21435420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18803}}^1$

素因数の和:18834

約数の個数: 48

約数和(自身を含む): 63181440

約数和(自身を除く): 41746020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 18803, 37606, 56409, 75212, 94015, 112818, 188030, 225636, 282045, 357257, 376060, 564090, 714514, 1071771, 1128180, 1429028, 1786285, 2143542, 3572570, 4287084, 5358855, 7145140, 10717710, 21435420]

約数ペア:

[(1, 21435420), (2, 10717710), (3, 7145140), (4, 5358855), (5, 4287084), (6, 3572570), (10, 2143542), (12, 1786285), (15, 1429028), (19, 1128180), (20, 1071771), (30, 714514), (38, 564090), (57, 376060), (60, 357257), (76, 282045), (95, 225636), (114, 188030), (190, 112818), (228, 94015), (285, 75212), (380, 56409), (570, 37606), (1140, 18803)]