21644704

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:329

約数の個数: 48

約数和(自身を含む): 44442216

約数和(自身を除く): 22797512

約数列:

[1, 2, 4, 8, 16, 32, 37, 74, 101, 148, 181, 202, 296, 362, 404, 592, 724, 808, 1184, 1448, 1616, 2896, 3232, 3737, 5792, 6697, 7474, 13394, 14948, 18281, 26788, 29896, 36562, 53576, 59792, 73124, 107152, 119584, 146248, 214304, 292496, 584992, 676397, 1352794, 2705588, 5411176, 10822352, 21644704]

約数ペア:

[(1, 21644704), (2, 10822352), (4, 5411176), (8, 2705588), (16, 1352794), (32, 676397), (37, 584992), (74, 292496), (101, 214304), (148, 146248), (181, 119584), (202, 107152), (296, 73124), (362, 59792), (404, 53576), (592, 36562), (724, 29896), (808, 26788), (1184, 18281), (1448, 14948), (1616, 13394), (2896, 7474), (3232, 6697), (3737, 5792)]