21151008009

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{2687}}^1\times {\mathrm{6203}}^1$

素因数の和:8946

約数の個数: 32

約数和(自身を含む): 32018595840

約数和(自身を除く): 10867587831

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 2687, 6203, 8061, 18609, 24183, 55827, 72549, 126289, 167481, 291541, 378867, 874623, 1136601, 2623869, 3409803, 7871607, 16667461, 50002383, 150007149, 450021447, 783370667, 2350112001, 7050336003, 21151008009]

約数ペア:

[(1, 21151008009), (3, 7050336003), (9, 2350112001), (27, 783370667), (47, 450021447), (141, 150007149), (423, 50002383), (1269, 16667461), (2687, 7871607), (6203, 3409803), (8061, 2623869), (18609, 1136601), (24183, 874623), (55827, 378867), (72549, 291541), (126289, 167481)]