21712288

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:150

約数の個数: 96

約数和(自身を含む): 50379840

約数和(自身を除く): 28667552

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 41, 52, 67, 76, 82, 104, 134, 152, 164, 208, 247, 268, 304, 328, 416, 494, 533, 536, 608, 656, 779, 871, 988, 1066, 1072, 1273, 1312, 1558, 1742, 1976, 2132, 2144, 2546, 2747, 3116, 3484, 3952, 4264, 5092, 5494, 6232, 6968, 7904, 8528, 10127, 10184, 10988, 12464, 13936, 16549, 17056, 20254, 20368, 21976, 24928, 27872, 33098, 35711, 40508, 40736, 43952, 52193, 66196, 71422, 81016, 87904, 104386, 132392, 142844, 162032, 208772, 264784, 285688, 324064, 417544, 529568, 571376, 678509, 835088, 1142752, 1357018, 1670176, 2714036, 5428072, 10856144, 21712288]

約数ペア:

[(1, 21712288), (2, 10856144), (4, 5428072), (8, 2714036), (13, 1670176), (16, 1357018), (19, 1142752), (26, 835088), (32, 678509), (38, 571376), (41, 529568), (52, 417544), (67, 324064), (76, 285688), (82, 264784), (104, 208772), (134, 162032), (152, 142844), (164, 132392), (208, 104386), (247, 87904), (268, 81016), (304, 71422), (328, 66196), (416, 52193), (494, 43952), (533, 40736), (536, 40508), (608, 35711), (656, 33098), (779, 27872), (871, 24928), (988, 21976), (1066, 20368), (1072, 20254), (1273, 17056), (1312, 16549), (1558, 13936), (1742, 12464), (1976, 10988), (2132, 10184), (2144, 10127), (2546, 8528), (2747, 7904), (3116, 6968), (3484, 6232), (3952, 5494), (4264, 5092)]