21576360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13831}}^1$

素因数の和:13858

約数の個数: 64

約数和(自身を含む): 69713280

約数和(自身を除く): 48136920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13831, 27662, 41493, 55324, 69155, 82986, 110648, 138310, 165972, 179803, 207465, 276620, 331944, 359606, 414930, 539409, 553240, 719212, 829860, 899015, 1078818, 1438424, 1659720, 1798030, 2157636, 2697045, 3596060, 4315272, 5394090, 7192120, 10788180, 21576360]

約数ペア:

[(1, 21576360), (2, 10788180), (3, 7192120), (4, 5394090), (5, 4315272), (6, 3596060), (8, 2697045), (10, 2157636), (12, 1798030), (13, 1659720), (15, 1438424), (20, 1078818), (24, 899015), (26, 829860), (30, 719212), (39, 553240), (40, 539409), (52, 414930), (60, 359606), (65, 331944), (78, 276620), (104, 207465), (120, 179803), (130, 165972), (156, 138310), (195, 110648), (260, 82986), (312, 69155), (390, 55324), (520, 41493), (780, 27662), (1560, 13831)]