21452700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1663}}^1$

素因数の和:1723

約数の個数: 72

約数和(自身を含む): 63551488

約数和(自身を除く): 42098788

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 43, 50, 60, 75, 86, 100, 129, 150, 172, 215, 258, 300, 430, 516, 645, 860, 1075, 1290, 1663, 2150, 2580, 3225, 3326, 4300, 4989, 6450, 6652, 8315, 9978, 12900, 16630, 19956, 24945, 33260, 41575, 49890, 71509, 83150, 99780, 124725, 143018, 166300, 214527, 249450, 286036, 357545, 429054, 498900, 715090, 858108, 1072635, 1430180, 1787725, 2145270, 3575450, 4290540, 5363175, 7150900, 10726350, 21452700]

約数ペア:

[(1, 21452700), (2, 10726350), (3, 7150900), (4, 5363175), (5, 4290540), (6, 3575450), (10, 2145270), (12, 1787725), (15, 1430180), (20, 1072635), (25, 858108), (30, 715090), (43, 498900), (50, 429054), (60, 357545), (75, 286036), (86, 249450), (100, 214527), (129, 166300), (150, 143018), (172, 124725), (215, 99780), (258, 83150), (300, 71509), (430, 49890), (516, 41575), (645, 33260), (860, 24945), (1075, 19956), (1290, 16630), (1663, 12900), (2150, 9978), (2580, 8315), (3225, 6652), (3326, 6450), (4300, 4989)]