21308214720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1707389}}^1$

素因数の和:1707422

約数の個数: 112

約数和(自身を含む): 72857746080

約数和(自身を除く): 51549531360

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, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 2080, 2496, 3120, 4160, 6240, 12480, 1707389, 3414778, 5122167, 6829556, 8536945, 10244334, 13659112, 17073890, 20488668, 22196057, 25610835, 27318224, 34147780, 40977336, 44392114, 51221670, 54636448, 66588171, 68295560, 81954672, 88784228, 102443340, 109272896, 110980285, 133176342, 136591120, 163909344, 177568456, 204886680, 221960570, 266352684, 273182240, 327818688, 332940855, 355136912, 409773360, 443921140, 532705368, 546364480, 665881710, 710273824, 819546720, 887842280, 1065410736, 1331763420, 1420547648, 1639093440, 1775684560, 2130821472, 2663526840, 3551369120, 4261642944, 5327053680, 7102738240, 10654107360, 21308214720]

約数ペア:

[(1, 21308214720), (2, 10654107360), (3, 7102738240), (4, 5327053680), (5, 4261642944), (6, 3551369120), (8, 2663526840), (10, 2130821472), (12, 1775684560), (13, 1639093440), (15, 1420547648), (16, 1331763420), (20, 1065410736), (24, 887842280), (26, 819546720), (30, 710273824), (32, 665881710), (39, 546364480), (40, 532705368), (48, 443921140), (52, 409773360), (60, 355136912), (64, 332940855), (65, 327818688), (78, 273182240), (80, 266352684), (96, 221960570), (104, 204886680), (120, 177568456), (130, 163909344), (156, 136591120), (160, 133176342), (192, 110980285), (195, 109272896), (208, 102443340), (240, 88784228), (260, 81954672), (312, 68295560), (320, 66588171), (390, 54636448), (416, 51221670), (480, 44392114), (520, 40977336), (624, 34147780), (780, 27318224), (832, 25610835), (960, 22196057), (1040, 20488668), (1248, 17073890), (1560, 13659112), (2080, 10244334), (2496, 8536945), (3120, 6829556), (4160, 5122167), (6240, 3414778), (12480, 1707389)]