21517470

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1$

素因数の和:426

約数の個数: 96

約数和(自身を含む): 61562592

約数和(自身を除く): 40045122

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 53, 65, 78, 90, 106, 117, 130, 159, 195, 234, 265, 318, 347, 390, 477, 530, 585, 689, 694, 795, 954, 1041, 1170, 1378, 1590, 1735, 2067, 2082, 2385, 3123, 3445, 3470, 4134, 4511, 4770, 5205, 6201, 6246, 6890, 9022, 10335, 10410, 12402, 13533, 15615, 18391, 20670, 22555, 27066, 31005, 31230, 36782, 40599, 45110, 55173, 62010, 67665, 81198, 91955, 110346, 135330, 165519, 183910, 202995, 239083, 275865, 331038, 405990, 478166, 551730, 717249, 827595, 1195415, 1434498, 1655190, 2151747, 2390830, 3586245, 4303494, 7172490, 10758735, 21517470]

約数ペア:

[(1, 21517470), (2, 10758735), (3, 7172490), (5, 4303494), (6, 3586245), (9, 2390830), (10, 2151747), (13, 1655190), (15, 1434498), (18, 1195415), (26, 827595), (30, 717249), (39, 551730), (45, 478166), (53, 405990), (65, 331038), (78, 275865), (90, 239083), (106, 202995), (117, 183910), (130, 165519), (159, 135330), (195, 110346), (234, 91955), (265, 81198), (318, 67665), (347, 62010), (390, 55173), (477, 45110), (530, 40599), (585, 36782), (689, 31230), (694, 31005), (795, 27066), (954, 22555), (1041, 20670), (1170, 18391), (1378, 15615), (1590, 13533), (1735, 12402), (2067, 10410), (2082, 10335), (2385, 9022), (3123, 6890), (3445, 6246), (3470, 6201), (4134, 5205), (4511, 4770)]