21501464

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 46072800

約数和(自身を除く): 24571336

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 53, 68, 76, 106, 136, 152, 157, 212, 314, 323, 424, 628, 646, 901, 1007, 1256, 1292, 1802, 2014, 2584, 2669, 2983, 3604, 4028, 5338, 5966, 7208, 8056, 8321, 10676, 11932, 16642, 17119, 21352, 23864, 33284, 34238, 50711, 66568, 68476, 101422, 136952, 141457, 158099, 202844, 282914, 316198, 405688, 565828, 632396, 1131656, 1264792, 2687683, 5375366, 10750732, 21501464]

約数ペア:

[(1, 21501464), (2, 10750732), (4, 5375366), (8, 2687683), (17, 1264792), (19, 1131656), (34, 632396), (38, 565828), (53, 405688), (68, 316198), (76, 282914), (106, 202844), (136, 158099), (152, 141457), (157, 136952), (212, 101422), (314, 68476), (323, 66568), (424, 50711), (628, 34238), (646, 33284), (901, 23864), (1007, 21352), (1256, 17119), (1292, 16642), (1802, 11932), (2014, 10676), (2584, 8321), (2669, 8056), (2983, 7208), (3604, 5966), (4028, 5338)]