21146840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3697}}^1$

素因数の和:3732

約数の個数: 64

約数和(自身を含む): 55913760

約数和(自身を除く): 34766920

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3697, 5720, 7394, 14788, 18485, 29576, 36970, 40667, 48061, 73940, 81334, 96122, 147880, 162668, 192244, 203335, 240305, 325336, 384488, 406670, 480610, 528671, 813340, 961220, 1057342, 1626680, 1922440, 2114684, 2643355, 4229368, 5286710, 10573420, 21146840]

約数ペア:

[(1, 21146840), (2, 10573420), (4, 5286710), (5, 4229368), (8, 2643355), (10, 2114684), (11, 1922440), (13, 1626680), (20, 1057342), (22, 961220), (26, 813340), (40, 528671), (44, 480610), (52, 406670), (55, 384488), (65, 325336), (88, 240305), (104, 203335), (110, 192244), (130, 162668), (143, 147880), (220, 96122), (260, 81334), (286, 73940), (440, 48061), (520, 40667), (572, 36970), (715, 29576), (1144, 18485), (1430, 14788), (2860, 7394), (3697, 5720)]