21856118

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1471}}^1$

素因数の和:1532

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 16298122

約数列:

[1, 2, 17, 19, 23, 34, 38, 46, 323, 391, 437, 646, 782, 874, 1471, 2942, 7429, 14858, 25007, 27949, 33833, 50014, 55898, 67666, 475133, 575161, 642827, 950266, 1150322, 1285654, 10928059, 21856118]

約数ペア:

[(1, 21856118), (2, 10928059), (17, 1285654), (19, 1150322), (23, 950266), (34, 642827), (38, 575161), (46, 475133), (323, 67666), (391, 55898), (437, 50014), (646, 33833), (782, 27949), (874, 25007), (1471, 14858), (2942, 7429)]