21377580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2213}}^1$

素因数の和:2255

約数の個数: 96

約数和(自身を含む): 71414784

約数和(自身を除く): 50037204

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1932, 2213, 2415, 3220, 4426, 4830, 6639, 8852, 9660, 11065, 13278, 15491, 22130, 26556, 30982, 33195, 44260, 46473, 50899, 61964, 66390, 77455, 92946, 101798, 132780, 152697, 154910, 185892, 203596, 232365, 254495, 305394, 309820, 356293, 464730, 508990, 610788, 712586, 763485, 929460, 1017980, 1068879, 1425172, 1526970, 1781465, 2137758, 3053940, 3562930, 4275516, 5344395, 7125860, 10688790, 21377580]

約数ペア:

[(1, 21377580), (2, 10688790), (3, 7125860), (4, 5344395), (5, 4275516), (6, 3562930), (7, 3053940), (10, 2137758), (12, 1781465), (14, 1526970), (15, 1425172), (20, 1068879), (21, 1017980), (23, 929460), (28, 763485), (30, 712586), (35, 610788), (42, 508990), (46, 464730), (60, 356293), (69, 309820), (70, 305394), (84, 254495), (92, 232365), (105, 203596), (115, 185892), (138, 154910), (140, 152697), (161, 132780), (210, 101798), (230, 92946), (276, 77455), (322, 66390), (345, 61964), (420, 50899), (460, 46473), (483, 44260), (644, 33195), (690, 30982), (805, 26556), (966, 22130), (1380, 15491), (1610, 13278), (1932, 11065), (2213, 9660), (2415, 8852), (3220, 6639), (4426, 4830)]