21943516

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{359}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 45964800

約数和(自身を除く): 24021284

約数列:

[1, 2, 4, 7, 14, 28, 37, 59, 74, 118, 148, 236, 259, 359, 413, 518, 718, 826, 1036, 1436, 1652, 2183, 2513, 4366, 5026, 8732, 10052, 13283, 15281, 21181, 26566, 30562, 42362, 53132, 61124, 84724, 92981, 148267, 185962, 296534, 371924, 593068, 783697, 1567394, 3134788, 5485879, 10971758, 21943516]

約数ペア:

[(1, 21943516), (2, 10971758), (4, 5485879), (7, 3134788), (14, 1567394), (28, 783697), (37, 593068), (59, 371924), (74, 296534), (118, 185962), (148, 148267), (236, 92981), (259, 84724), (359, 61124), (413, 53132), (518, 42362), (718, 30562), (826, 26566), (1036, 21181), (1436, 15281), (1652, 13283), (2183, 10052), (2513, 8732), (4366, 5026)]