21580188

素因数分解:

$2^2\times 3^1\times 7^5\times {\mathrm{107}}^1$

素因数の和:149

約数の個数: 72

約数和(自身を含む): 59294592

約数和(自身を除く): 37714404

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 107, 147, 196, 214, 294, 321, 343, 428, 588, 642, 686, 749, 1029, 1284, 1372, 1498, 2058, 2247, 2401, 2996, 4116, 4494, 4802, 5243, 7203, 8988, 9604, 10486, 14406, 15729, 16807, 20972, 28812, 31458, 33614, 36701, 50421, 62916, 67228, 73402, 100842, 110103, 146804, 201684, 220206, 256907, 440412, 513814, 770721, 1027628, 1541442, 1798349, 3082884, 3596698, 5395047, 7193396, 10790094, 21580188]

約数ペア:

[(1, 21580188), (2, 10790094), (3, 7193396), (4, 5395047), (6, 3596698), (7, 3082884), (12, 1798349), (14, 1541442), (21, 1027628), (28, 770721), (42, 513814), (49, 440412), (84, 256907), (98, 220206), (107, 201684), (147, 146804), (196, 110103), (214, 100842), (294, 73402), (321, 67228), (343, 62916), (428, 50421), (588, 36701), (642, 33614), (686, 31458), (749, 28812), (1029, 20972), (1284, 16807), (1372, 15729), (1498, 14406), (2058, 10486), (2247, 9604), (2401, 8988), (2996, 7203), (4116, 5243), (4494, 4802)]