21304752

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:570

約数の個数: 80

約数和(自身を含む): 63448320

約数和(自身を除く): 42143568

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 163, 168, 326, 336, 389, 489, 652, 778, 978, 1141, 1167, 1304, 1556, 1956, 2282, 2334, 2608, 2723, 3112, 3423, 3912, 4564, 4668, 5446, 6224, 6846, 7824, 8169, 9128, 9336, 10892, 13692, 16338, 18256, 18672, 21784, 27384, 32676, 43568, 54768, 63407, 65352, 126814, 130704, 190221, 253628, 380442, 443849, 507256, 760884, 887698, 1014512, 1331547, 1521768, 1775396, 2663094, 3043536, 3550792, 5326188, 7101584, 10652376, 21304752]

約数ペア:

[(1, 21304752), (2, 10652376), (3, 7101584), (4, 5326188), (6, 3550792), (7, 3043536), (8, 2663094), (12, 1775396), (14, 1521768), (16, 1331547), (21, 1014512), (24, 887698), (28, 760884), (42, 507256), (48, 443849), (56, 380442), (84, 253628), (112, 190221), (163, 130704), (168, 126814), (326, 65352), (336, 63407), (389, 54768), (489, 43568), (652, 32676), (778, 27384), (978, 21784), (1141, 18672), (1167, 18256), (1304, 16338), (1556, 13692), (1956, 10892), (2282, 9336), (2334, 9128), (2608, 8169), (2723, 7824), (3112, 6846), (3423, 6224), (3912, 5446), (4564, 4668)]