21581976

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{313}}^1$

素因数の和:365

約数の個数: 96

約数和(自身を含む): 62058960

約数和(自身を除く): 40476984

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 68, 78, 102, 104, 136, 156, 169, 204, 221, 312, 313, 338, 408, 442, 507, 626, 663, 676, 884, 939, 1014, 1252, 1326, 1352, 1768, 1878, 2028, 2504, 2652, 2873, 3756, 4056, 4069, 5304, 5321, 5746, 7512, 8138, 8619, 10642, 11492, 12207, 15963, 16276, 17238, 21284, 22984, 24414, 31926, 32552, 34476, 42568, 48828, 52897, 63852, 68952, 69173, 97656, 105794, 127704, 138346, 158691, 207519, 211588, 276692, 317382, 415038, 423176, 553384, 634764, 830076, 899249, 1269528, 1660152, 1798498, 2697747, 3596996, 5395494, 7193992, 10790988, 21581976]

約数ペア:

[(1, 21581976), (2, 10790988), (3, 7193992), (4, 5395494), (6, 3596996), (8, 2697747), (12, 1798498), (13, 1660152), (17, 1269528), (24, 899249), (26, 830076), (34, 634764), (39, 553384), (51, 423176), (52, 415038), (68, 317382), (78, 276692), (102, 211588), (104, 207519), (136, 158691), (156, 138346), (169, 127704), (204, 105794), (221, 97656), (312, 69173), (313, 68952), (338, 63852), (408, 52897), (442, 48828), (507, 42568), (626, 34476), (663, 32552), (676, 31926), (884, 24414), (939, 22984), (1014, 21284), (1252, 17238), (1326, 16276), (1352, 15963), (1768, 12207), (1878, 11492), (2028, 10642), (2504, 8619), (2652, 8138), (2873, 7512), (3756, 5746), (4056, 5321), (4069, 5304)]