21724170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1051}}^1$

素因数の和:1127

約数の個数: 64

約数和(自身を含む): 57262464

約数和(自身を除く): 35538294

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 53, 65, 78, 106, 130, 159, 195, 265, 318, 390, 530, 689, 795, 1051, 1378, 1590, 2067, 2102, 3153, 3445, 4134, 5255, 6306, 6890, 10335, 10510, 13663, 15765, 20670, 27326, 31530, 40989, 55703, 68315, 81978, 111406, 136630, 167109, 204945, 278515, 334218, 409890, 557030, 724139, 835545, 1448278, 1671090, 2172417, 3620695, 4344834, 7241390, 10862085, 21724170]

約数ペア:

[(1, 21724170), (2, 10862085), (3, 7241390), (5, 4344834), (6, 3620695), (10, 2172417), (13, 1671090), (15, 1448278), (26, 835545), (30, 724139), (39, 557030), (53, 409890), (65, 334218), (78, 278515), (106, 204945), (130, 167109), (159, 136630), (195, 111406), (265, 81978), (318, 68315), (390, 55703), (530, 40989), (689, 31530), (795, 27326), (1051, 20670), (1378, 15765), (1590, 13663), (2067, 10510), (2102, 10335), (3153, 6890), (3445, 6306), (4134, 5255)]