21412560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6863}}^1$

素因数の和:6892

約数の個数: 80

約数和(自身を含む): 71495424

約数和(自身を除く): 50082864

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6863, 13726, 20589, 27452, 34315, 41178, 54904, 68630, 82356, 89219, 102945, 109808, 137260, 164712, 178438, 205890, 267657, 274520, 329424, 356876, 411780, 446095, 535314, 549040, 713752, 823560, 892190, 1070628, 1338285, 1427504, 1647120, 1784380, 2141256, 2676570, 3568760, 4282512, 5353140, 7137520, 10706280, 21412560]

約数ペア:

[(1, 21412560), (2, 10706280), (3, 7137520), (4, 5353140), (5, 4282512), (6, 3568760), (8, 2676570), (10, 2141256), (12, 1784380), (13, 1647120), (15, 1427504), (16, 1338285), (20, 1070628), (24, 892190), (26, 823560), (30, 713752), (39, 549040), (40, 535314), (48, 446095), (52, 411780), (60, 356876), (65, 329424), (78, 274520), (80, 267657), (104, 205890), (120, 178438), (130, 164712), (156, 137260), (195, 109808), (208, 102945), (240, 89219), (260, 82356), (312, 68630), (390, 54904), (520, 41178), (624, 34315), (780, 27452), (1040, 20589), (1560, 13726), (3120, 6863)]