21053888

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{523}}^1$

素因数の和:589

約数の個数: 56

約数和(自身を含む): 45518832

約数和(自身を除く): 24464944

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 37, 64, 68, 74, 136, 148, 272, 296, 523, 544, 592, 629, 1046, 1088, 1184, 1258, 2092, 2368, 2516, 4184, 5032, 8368, 8891, 10064, 16736, 17782, 19351, 20128, 33472, 35564, 38702, 40256, 71128, 77404, 142256, 154808, 284512, 309616, 328967, 569024, 619232, 657934, 1238464, 1315868, 2631736, 5263472, 10526944, 21053888]

約数ペア:

[(1, 21053888), (2, 10526944), (4, 5263472), (8, 2631736), (16, 1315868), (17, 1238464), (32, 657934), (34, 619232), (37, 569024), (64, 328967), (68, 309616), (74, 284512), (136, 154808), (148, 142256), (272, 77404), (296, 71128), (523, 40256), (544, 38702), (592, 35564), (629, 33472), (1046, 20128), (1088, 19351), (1184, 17782), (1258, 16736), (2092, 10064), (2368, 8891), (2516, 8368), (4184, 5032)]