21535328

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1277}}^1$

素因数の和:1335

約数の個数: 48

約数和(自身を含む): 46376064

約数和(自身を除く): 24840736

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 68, 124, 136, 248, 272, 496, 527, 544, 992, 1054, 1277, 2108, 2554, 4216, 5108, 8432, 10216, 16864, 20432, 21709, 39587, 40864, 43418, 79174, 86836, 158348, 173672, 316696, 347344, 633392, 672979, 694688, 1266784, 1345958, 2691916, 5383832, 10767664, 21535328]

約数ペア:

[(1, 21535328), (2, 10767664), (4, 5383832), (8, 2691916), (16, 1345958), (17, 1266784), (31, 694688), (32, 672979), (34, 633392), (62, 347344), (68, 316696), (124, 173672), (136, 158348), (248, 86836), (272, 79174), (496, 43418), (527, 40864), (544, 39587), (992, 21709), (1054, 20432), (1277, 16864), (2108, 10216), (2554, 8432), (4216, 5108)]