20558848

素因数分解:

$2^{10}\times {\mathrm{17}}^1\times {\mathrm{1181}}^1$

素因数の和:1218

約数の個数: 44

約数和(自身を含む): 43551972

約数和(自身を除く): 22993124

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 512, 544, 1024, 1088, 1181, 2176, 2362, 4352, 4724, 8704, 9448, 17408, 18896, 20077, 37792, 40154, 75584, 80308, 151168, 160616, 302336, 321232, 604672, 642464, 1209344, 1284928, 2569856, 5139712, 10279424, 20558848]

約数ペア:

[(1, 20558848), (2, 10279424), (4, 5139712), (8, 2569856), (16, 1284928), (17, 1209344), (32, 642464), (34, 604672), (64, 321232), (68, 302336), (128, 160616), (136, 151168), (256, 80308), (272, 75584), (512, 40154), (544, 37792), (1024, 20077), (1088, 18896), (1181, 17408), (2176, 9448), (2362, 8704), (4352, 4724)]