21290147235

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3557251}}^1$

素因数の和:3557288

約数の個数: 48

約数和(自身を含む): 44394504960

約数和(自身を除く): 23104357725

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 285, 315, 399, 665, 855, 1197, 1995, 5985, 3557251, 10671753, 17786255, 24900757, 32015259, 53358765, 67587769, 74702271, 124503785, 160076295, 202763307, 224106813, 337938845, 373511355, 473114383, 608289921, 1013816535, 1120534065, 1419343149, 2365571915, 3041449605, 4258029447, 7096715745, 21290147235]

約数ペア:

[(1, 21290147235), (3, 7096715745), (5, 4258029447), (7, 3041449605), (9, 2365571915), (15, 1419343149), (19, 1120534065), (21, 1013816535), (35, 608289921), (45, 473114383), (57, 373511355), (63, 337938845), (95, 224106813), (105, 202763307), (133, 160076295), (171, 124503785), (285, 74702271), (315, 67587769), (399, 53358765), (665, 32015259), (855, 24900757), (1197, 17786255), (1995, 10671753), (5985, 3557251)]