21913216

素因数分解:

$2^7\times {\mathrm{13}}^2\times {\mathrm{1013}}^1$

素因数の和:1053

約数の個数: 48

約数和(自身を含む): 47318310

約数和(自身を除く): 25405094

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 169, 208, 338, 416, 676, 832, 1013, 1352, 1664, 2026, 2704, 4052, 5408, 8104, 10816, 13169, 16208, 21632, 26338, 32416, 52676, 64832, 105352, 129664, 171197, 210704, 342394, 421408, 684788, 842816, 1369576, 1685632, 2739152, 5478304, 10956608, 21913216]

約数ペア:

[(1, 21913216), (2, 10956608), (4, 5478304), (8, 2739152), (13, 1685632), (16, 1369576), (26, 842816), (32, 684788), (52, 421408), (64, 342394), (104, 210704), (128, 171197), (169, 129664), (208, 105352), (338, 64832), (416, 52676), (676, 32416), (832, 26338), (1013, 21632), (1352, 16208), (1664, 13169), (2026, 10816), (2704, 8104), (4052, 5408)]