21547240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3767}}^1$

素因数の和:3802

約数の個数: 64

約数和(自身を含む): 56972160

約数和(自身を除く): 35424920

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, 3767, 5720, 7534, 15068, 18835, 30136, 37670, 41437, 48971, 75340, 82874, 97942, 150680, 165748, 195884, 207185, 244855, 331496, 391768, 414370, 489710, 538681, 828740, 979420, 1077362, 1657480, 1958840, 2154724, 2693405, 4309448, 5386810, 10773620, 21547240]

約数ペア:

[(1, 21547240), (2, 10773620), (4, 5386810), (5, 4309448), (8, 2693405), (10, 2154724), (11, 1958840), (13, 1657480), (20, 1077362), (22, 979420), (26, 828740), (40, 538681), (44, 489710), (52, 414370), (55, 391768), (65, 331496), (88, 244855), (104, 207185), (110, 195884), (130, 165748), (143, 150680), (220, 97942), (260, 82874), (286, 75340), (440, 48971), (520, 41437), (572, 37670), (715, 30136), (1144, 18835), (1430, 15068), (2860, 7534), (3767, 5720)]