19691542

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:217

約数の個数: 48

約数和(自身を含む): 35575200

約数和(自身を除く): 15883658

約数列:

[1, 2, 13, 17, 23, 26, 34, 46, 149, 169, 221, 298, 299, 338, 391, 442, 598, 782, 1937, 2533, 2873, 3427, 3874, 3887, 5066, 5083, 5746, 6854, 7774, 10166, 25181, 32929, 44551, 50362, 58259, 65858, 66079, 89102, 116518, 132158, 428077, 579163, 757367, 856154, 1158326, 1514734, 9845771, 19691542]

約数ペア:

[(1, 19691542), (2, 9845771), (13, 1514734), (17, 1158326), (23, 856154), (26, 757367), (34, 579163), (46, 428077), (149, 132158), (169, 116518), (221, 89102), (298, 66079), (299, 65858), (338, 58259), (391, 50362), (442, 44551), (598, 32929), (782, 25181), (1937, 10166), (2533, 7774), (2873, 6854), (3427, 5746), (3874, 5083), (3887, 5066)]