21180496696

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{331}}^1\times {\mathrm{22157}}^1$

素因数の和:22532

約数の個数: 48

約数和(自身を含む): 42042146040

約数和(自身を除く): 20861649344

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 331, 361, 662, 722, 1324, 1444, 2648, 2888, 6289, 12578, 22157, 25156, 44314, 50312, 88628, 119491, 177256, 238982, 420983, 477964, 841966, 955928, 1683932, 3367864, 7333967, 7998677, 14667934, 15997354, 29335868, 31994708, 58671736, 63989416, 139345373, 278690746, 557381492, 1114762984, 2647562087, 5295124174, 10590248348, 21180496696]

約数ペア:

[(1, 21180496696), (2, 10590248348), (4, 5295124174), (8, 2647562087), (19, 1114762984), (38, 557381492), (76, 278690746), (152, 139345373), (331, 63989416), (361, 58671736), (662, 31994708), (722, 29335868), (1324, 15997354), (1444, 14667934), (2648, 7998677), (2888, 7333967), (6289, 3367864), (12578, 1683932), (22157, 955928), (25156, 841966), (44314, 477964), (50312, 420983), (88628, 238982), (119491, 177256)]