21651372

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{331}}^1$

素因数の和:443

約数の個数: 72

約数和(自身を含む): 58007040

約数和(自身を除く): 36355668

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 79, 92, 138, 158, 207, 237, 276, 316, 331, 414, 474, 662, 711, 828, 948, 993, 1324, 1422, 1817, 1986, 2844, 2979, 3634, 3972, 5451, 5958, 7268, 7613, 10902, 11916, 15226, 16353, 21804, 22839, 26149, 30452, 32706, 45678, 52298, 65412, 68517, 78447, 91356, 104596, 137034, 156894, 235341, 274068, 313788, 470682, 601427, 941364, 1202854, 1804281, 2405708, 3608562, 5412843, 7217124, 10825686, 21651372]

約数ペア:

[(1, 21651372), (2, 10825686), (3, 7217124), (4, 5412843), (6, 3608562), (9, 2405708), (12, 1804281), (18, 1202854), (23, 941364), (36, 601427), (46, 470682), (69, 313788), (79, 274068), (92, 235341), (138, 156894), (158, 137034), (207, 104596), (237, 91356), (276, 78447), (316, 68517), (331, 65412), (414, 52298), (474, 45678), (662, 32706), (711, 30452), (828, 26149), (948, 22839), (993, 21804), (1324, 16353), (1422, 15226), (1817, 11916), (1986, 10902), (2844, 7613), (2979, 7268), (3634, 5958), (3972, 5451)]