21608340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2131}}^1$

素因数の和:2169

約数の個数: 72

約数和(自身を含む): 65546208

約数和(自身を除く): 43937868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2131, 2535, 3380, 4262, 5070, 6393, 8524, 10140, 10655, 12786, 21310, 25572, 27703, 31965, 42620, 55406, 63930, 83109, 110812, 127860, 138515, 166218, 277030, 332436, 360139, 415545, 554060, 720278, 831090, 1080417, 1440556, 1662180, 1800695, 2160834, 3601390, 4321668, 5402085, 7202780, 10804170, 21608340]

約数ペア:

[(1, 21608340), (2, 10804170), (3, 7202780), (4, 5402085), (5, 4321668), (6, 3601390), (10, 2160834), (12, 1800695), (13, 1662180), (15, 1440556), (20, 1080417), (26, 831090), (30, 720278), (39, 554060), (52, 415545), (60, 360139), (65, 332436), (78, 277030), (130, 166218), (156, 138515), (169, 127860), (195, 110812), (260, 83109), (338, 63930), (390, 55406), (507, 42620), (676, 31965), (780, 27703), (845, 25572), (1014, 21310), (1690, 12786), (2028, 10655), (2131, 10140), (2535, 8524), (3380, 6393), (4262, 5070)]