21575880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{821}}^1$

素因数の和:911

約数の個数: 96

約数和(自身を含む): 71168760

約数和(自身を除く): 49592880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 73, 90, 120, 146, 180, 219, 292, 360, 365, 438, 584, 657, 730, 821, 876, 1095, 1314, 1460, 1642, 1752, 2190, 2463, 2628, 2920, 3284, 3285, 4105, 4380, 4926, 5256, 6568, 6570, 7389, 8210, 8760, 9852, 12315, 13140, 14778, 16420, 19704, 24630, 26280, 29556, 32840, 36945, 49260, 59112, 59933, 73890, 98520, 119866, 147780, 179799, 239732, 295560, 299665, 359598, 479464, 539397, 599330, 719196, 898995, 1078794, 1198660, 1438392, 1797990, 2157588, 2397320, 2696985, 3595980, 4315176, 5393970, 7191960, 10787940, 21575880]

約数ペア:

[(1, 21575880), (2, 10787940), (3, 7191960), (4, 5393970), (5, 4315176), (6, 3595980), (8, 2696985), (9, 2397320), (10, 2157588), (12, 1797990), (15, 1438392), (18, 1198660), (20, 1078794), (24, 898995), (30, 719196), (36, 599330), (40, 539397), (45, 479464), (60, 359598), (72, 299665), (73, 295560), (90, 239732), (120, 179799), (146, 147780), (180, 119866), (219, 98520), (292, 73890), (360, 59933), (365, 59112), (438, 49260), (584, 36945), (657, 32840), (730, 29556), (821, 26280), (876, 24630), (1095, 19704), (1314, 16420), (1460, 14778), (1642, 13140), (1752, 12315), (2190, 9852), (2463, 8760), (2628, 8210), (2920, 7389), (3284, 6570), (3285, 6568), (4105, 5256), (4380, 4926)]