21894574

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:145

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 18747986

約数列:

[1, 2, 13, 19, 23, 26, 38, 41, 46, 47, 82, 94, 247, 299, 437, 494, 533, 598, 611, 779, 874, 893, 943, 1066, 1081, 1222, 1558, 1786, 1886, 1927, 2162, 3854, 5681, 10127, 11362, 11609, 12259, 14053, 17917, 20254, 20539, 23218, 24518, 25051, 28106, 35834, 36613, 41078, 44321, 50102, 73226, 88642, 232921, 267007, 465842, 475969, 534014, 576173, 842099, 951938, 1152346, 1684198, 10947287, 21894574]

約数ペア:

[(1, 21894574), (2, 10947287), (13, 1684198), (19, 1152346), (23, 951938), (26, 842099), (38, 576173), (41, 534014), (46, 475969), (47, 465842), (82, 267007), (94, 232921), (247, 88642), (299, 73226), (437, 50102), (494, 44321), (533, 41078), (598, 36613), (611, 35834), (779, 28106), (874, 25051), (893, 24518), (943, 23218), (1066, 20539), (1081, 20254), (1222, 17917), (1558, 14053), (1786, 12259), (1886, 11609), (1927, 11362), (2162, 10127), (3854, 5681)]