21292700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1489}}^1$

素因数の和:1527

約数の個数: 72

約数和(自身を含む): 54319440

約数和(自身を除く): 33026740

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 100, 110, 130, 143, 220, 260, 275, 286, 325, 550, 572, 650, 715, 1100, 1300, 1430, 1489, 2860, 2978, 3575, 5956, 7150, 7445, 14300, 14890, 16379, 19357, 29780, 32758, 37225, 38714, 65516, 74450, 77428, 81895, 96785, 148900, 163790, 193570, 212927, 327580, 387140, 409475, 425854, 483925, 818950, 851708, 967850, 1064635, 1637900, 1935700, 2129270, 4258540, 5323175, 10646350, 21292700]

約数ペア:

[(1, 21292700), (2, 10646350), (4, 5323175), (5, 4258540), (10, 2129270), (11, 1935700), (13, 1637900), (20, 1064635), (22, 967850), (25, 851708), (26, 818950), (44, 483925), (50, 425854), (52, 409475), (55, 387140), (65, 327580), (100, 212927), (110, 193570), (130, 163790), (143, 148900), (220, 96785), (260, 81895), (275, 77428), (286, 74450), (325, 65516), (550, 38714), (572, 37225), (650, 32758), (715, 29780), (1100, 19357), (1300, 16379), (1430, 14890), (1489, 14300), (2860, 7445), (2978, 7150), (3575, 5956)]