20211776

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1429}}^1$

素因数の和:1471

約数の個数: 56

約数和(自身を含む): 45765720

約数和(自身を除く): 25553944

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 136, 208, 221, 272, 416, 442, 544, 832, 884, 1088, 1429, 1768, 2858, 3536, 5716, 7072, 11432, 14144, 18577, 22864, 24293, 37154, 45728, 48586, 74308, 91456, 97172, 148616, 194344, 297232, 315809, 388688, 594464, 631618, 777376, 1188928, 1263236, 1554752, 2526472, 5052944, 10105888, 20211776]

約数ペア:

[(1, 20211776), (2, 10105888), (4, 5052944), (8, 2526472), (13, 1554752), (16, 1263236), (17, 1188928), (26, 777376), (32, 631618), (34, 594464), (52, 388688), (64, 315809), (68, 297232), (104, 194344), (136, 148616), (208, 97172), (221, 91456), (272, 74308), (416, 48586), (442, 45728), (544, 37154), (832, 24293), (884, 22864), (1088, 18577), (1429, 14144), (1768, 11432), (2858, 7072), (3536, 5716)]