21101730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{887}}^1$

素因数の和:971

約数の個数: 64

約数和(自身を含む): 55496448

約数和(自身を除く): 34394718

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 61, 65, 78, 122, 130, 183, 195, 305, 366, 390, 610, 793, 887, 915, 1586, 1774, 1830, 2379, 2661, 3965, 4435, 4758, 5322, 7930, 8870, 11531, 11895, 13305, 23062, 23790, 26610, 34593, 54107, 57655, 69186, 108214, 115310, 162321, 172965, 270535, 324642, 345930, 541070, 703391, 811605, 1406782, 1623210, 2110173, 3516955, 4220346, 7033910, 10550865, 21101730]

約数ペア:

[(1, 21101730), (2, 10550865), (3, 7033910), (5, 4220346), (6, 3516955), (10, 2110173), (13, 1623210), (15, 1406782), (26, 811605), (30, 703391), (39, 541070), (61, 345930), (65, 324642), (78, 270535), (122, 172965), (130, 162321), (183, 115310), (195, 108214), (305, 69186), (366, 57655), (390, 54107), (610, 34593), (793, 26610), (887, 23790), (915, 23062), (1586, 13305), (1774, 11895), (1830, 11531), (2379, 8870), (2661, 7930), (3965, 5322), (4435, 4758)]