21415140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{118973}}^1$

素因数の和:118988

約数の個数: 36

約数和(自身を含む): 64959804

約数和(自身を除く): 43544664

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 118973, 237946, 356919, 475892, 594865, 713838, 1070757, 1189730, 1427676, 1784595, 2141514, 2379460, 3569190, 4283028, 5353785, 7138380, 10707570, 21415140]

約数ペア:

[(1, 21415140), (2, 10707570), (3, 7138380), (4, 5353785), (5, 4283028), (6, 3569190), (9, 2379460), (10, 2141514), (12, 1784595), (15, 1427676), (18, 1189730), (20, 1070757), (30, 713838), (36, 594865), (45, 475892), (60, 356919), (90, 237946), (180, 118973)]