20921833088

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{739601}}^1$

素因数の和:739645

約数の個数: 64

約数和(自身を含む): 47526824520

約数和(自身を除く): 26604991432

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 128, 136, 208, 221, 272, 416, 442, 544, 832, 884, 1088, 1664, 1768, 2176, 3536, 7072, 14144, 28288, 739601, 1479202, 2958404, 5916808, 9614813, 11833616, 12573217, 19229626, 23667232, 25146434, 38459252, 47334464, 50292868, 76918504, 94668928, 100585736, 153837008, 163451821, 201171472, 307674016, 326903642, 402342944, 615348032, 653807284, 804685888, 1230696064, 1307614568, 1609371776, 2615229136, 5230458272, 10460916544, 20921833088]

約数ペア:

[(1, 20921833088), (2, 10460916544), (4, 5230458272), (8, 2615229136), (13, 1609371776), (16, 1307614568), (17, 1230696064), (26, 804685888), (32, 653807284), (34, 615348032), (52, 402342944), (64, 326903642), (68, 307674016), (104, 201171472), (128, 163451821), (136, 153837008), (208, 100585736), (221, 94668928), (272, 76918504), (416, 50292868), (442, 47334464), (544, 38459252), (832, 25146434), (884, 23667232), (1088, 19229626), (1664, 12573217), (1768, 11833616), (2176, 9614813), (3536, 5916808), (7072, 2958404), (14144, 1479202), (28288, 739601)]