21347865

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:191

約数の個数: 96

約数和(自身を含む): 47354112

約数和(自身を除く): 26006247

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 61, 63, 77, 99, 101, 105, 165, 183, 231, 303, 305, 315, 385, 427, 495, 505, 549, 671, 693, 707, 909, 915, 1111, 1155, 1281, 1515, 2013, 2121, 2135, 2745, 3333, 3355, 3465, 3535, 3843, 4545, 4697, 5555, 6039, 6161, 6363, 6405, 7777, 9999, 10065, 10605, 14091, 16665, 18483, 19215, 23331, 23485, 30195, 30805, 31815, 38885, 42273, 43127, 49995, 55449, 67771, 69993, 70455, 92415, 116655, 129381, 203313, 211365, 215635, 277245, 338855, 349965, 388143, 474397, 609939, 646905, 1016565, 1423191, 1940715, 2371985, 3049695, 4269573, 7115955, 21347865]

約数ペア:

[(1, 21347865), (3, 7115955), (5, 4269573), (7, 3049695), (9, 2371985), (11, 1940715), (15, 1423191), (21, 1016565), (33, 646905), (35, 609939), (45, 474397), (55, 388143), (61, 349965), (63, 338855), (77, 277245), (99, 215635), (101, 211365), (105, 203313), (165, 129381), (183, 116655), (231, 92415), (303, 70455), (305, 69993), (315, 67771), (385, 55449), (427, 49995), (495, 43127), (505, 42273), (549, 38885), (671, 31815), (693, 30805), (707, 30195), (909, 23485), (915, 23331), (1111, 19215), (1155, 18483), (1281, 16665), (1515, 14091), (2013, 10605), (2121, 10065), (2135, 9999), (2745, 7777), (3333, 6405), (3355, 6363), (3465, 6161), (3535, 6039), (3843, 5555), (4545, 4697)]