21032700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5393}}^1$

素因数の和:5423

約数の個数: 72

約数和(自身を含む): 65547888

約数和(自身を除く): 44515188

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 5393, 10786, 16179, 21572, 26965, 32358, 53930, 64716, 70109, 80895, 107860, 134825, 140218, 161790, 210327, 269650, 280436, 323580, 350545, 404475, 420654, 539300, 701090, 808950, 841308, 1051635, 1402180, 1617900, 1752725, 2103270, 3505450, 4206540, 5258175, 7010900, 10516350, 21032700]

約数ペア:

[(1, 21032700), (2, 10516350), (3, 7010900), (4, 5258175), (5, 4206540), (6, 3505450), (10, 2103270), (12, 1752725), (13, 1617900), (15, 1402180), (20, 1051635), (25, 841308), (26, 808950), (30, 701090), (39, 539300), (50, 420654), (52, 404475), (60, 350545), (65, 323580), (75, 280436), (78, 269650), (100, 210327), (130, 161790), (150, 140218), (156, 134825), (195, 107860), (260, 80895), (300, 70109), (325, 64716), (390, 53930), (650, 32358), (780, 26965), (975, 21572), (1300, 16179), (1950, 10786), (3900, 5393)]