21147360

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3389}}^1$

素因数の和:3420

約数の個数: 96

約数和(自身を含む): 71759520

約数和(自身を除く): 50612160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 195, 208, 240, 260, 312, 390, 416, 480, 520, 624, 780, 1040, 1248, 1560, 2080, 3120, 3389, 6240, 6778, 10167, 13556, 16945, 20334, 27112, 33890, 40668, 44057, 50835, 54224, 67780, 81336, 88114, 101670, 108448, 132171, 135560, 162672, 176228, 203340, 220285, 264342, 271120, 325344, 352456, 406680, 440570, 528684, 542240, 660855, 704912, 813360, 881140, 1057368, 1321710, 1409824, 1626720, 1762280, 2114736, 2643420, 3524560, 4229472, 5286840, 7049120, 10573680, 21147360]

約数ペア:

[(1, 21147360), (2, 10573680), (3, 7049120), (4, 5286840), (5, 4229472), (6, 3524560), (8, 2643420), (10, 2114736), (12, 1762280), (13, 1626720), (15, 1409824), (16, 1321710), (20, 1057368), (24, 881140), (26, 813360), (30, 704912), (32, 660855), (39, 542240), (40, 528684), (48, 440570), (52, 406680), (60, 352456), (65, 325344), (78, 271120), (80, 264342), (96, 220285), (104, 203340), (120, 176228), (130, 162672), (156, 135560), (160, 132171), (195, 108448), (208, 101670), (240, 88114), (260, 81336), (312, 67780), (390, 54224), (416, 50835), (480, 44057), (520, 40668), (624, 33890), (780, 27112), (1040, 20334), (1248, 16945), (1560, 13556), (2080, 10167), (3120, 6778), (3389, 6240)]