20913592

素因数分解:

$2^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1721}}^1$

素因数の和:1772

約数の個数: 48

約数和(自身を含む): 47113920

約数和(自身を除く): 26200328

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 49, 56, 62, 98, 124, 196, 217, 248, 392, 434, 868, 1519, 1721, 1736, 3038, 3442, 6076, 6884, 12047, 12152, 13768, 24094, 48188, 53351, 84329, 96376, 106702, 168658, 213404, 337316, 373457, 426808, 674632, 746914, 1493828, 2614199, 2987656, 5228398, 10456796, 20913592]

約数ペア:

[(1, 20913592), (2, 10456796), (4, 5228398), (7, 2987656), (8, 2614199), (14, 1493828), (28, 746914), (31, 674632), (49, 426808), (56, 373457), (62, 337316), (98, 213404), (124, 168658), (196, 106702), (217, 96376), (248, 84329), (392, 53351), (434, 48188), (868, 24094), (1519, 13768), (1721, 12152), (1736, 12047), (3038, 6884), (3442, 6076)]