21015852

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:399

約数の個数: 96

約数和(自身を含む): 59345664

約数和(自身を除く): 38329812

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 37, 39, 44, 52, 66, 74, 78, 111, 132, 143, 148, 156, 222, 286, 331, 407, 429, 444, 481, 572, 662, 814, 858, 962, 993, 1221, 1324, 1443, 1628, 1716, 1924, 1986, 2442, 2886, 3641, 3972, 4303, 4884, 5291, 5772, 7282, 8606, 10582, 10923, 12247, 12909, 14564, 15873, 17212, 21164, 21846, 24494, 25818, 31746, 36741, 43692, 47333, 48988, 51636, 63492, 73482, 94666, 134717, 141999, 146964, 159211, 189332, 269434, 283998, 318422, 404151, 477633, 538868, 567996, 636844, 808302, 955266, 1616604, 1751321, 1910532, 3502642, 5253963, 7005284, 10507926, 21015852]

約数ペア:

[(1, 21015852), (2, 10507926), (3, 7005284), (4, 5253963), (6, 3502642), (11, 1910532), (12, 1751321), (13, 1616604), (22, 955266), (26, 808302), (33, 636844), (37, 567996), (39, 538868), (44, 477633), (52, 404151), (66, 318422), (74, 283998), (78, 269434), (111, 189332), (132, 159211), (143, 146964), (148, 141999), (156, 134717), (222, 94666), (286, 73482), (331, 63492), (407, 51636), (429, 48988), (444, 47333), (481, 43692), (572, 36741), (662, 31746), (814, 25818), (858, 24494), (962, 21846), (993, 21164), (1221, 17212), (1324, 15873), (1443, 14564), (1628, 12909), (1716, 12247), (1924, 10923), (1986, 10582), (2442, 8606), (2886, 7282), (3641, 5772), (3972, 5291), (4303, 4884)]