19912318348

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{317257}}^1$

素因数の和:317362

約数の個数: 48

約数和(自身を含む): 40294304064

約数和(自身を除く): 20381985716

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 71, 142, 221, 284, 442, 884, 923, 1207, 1846, 2414, 3692, 4828, 15691, 31382, 62764, 317257, 634514, 1269028, 4124341, 5393369, 8248682, 10786738, 16497364, 21573476, 22525247, 45050494, 70113797, 90100988, 140227594, 280455188, 292828211, 382929199, 585656422, 765858398, 1171312844, 1531716796, 4978079587, 9956159174, 19912318348]

約数ペア:

[(1, 19912318348), (2, 9956159174), (4, 4978079587), (13, 1531716796), (17, 1171312844), (26, 765858398), (34, 585656422), (52, 382929199), (68, 292828211), (71, 280455188), (142, 140227594), (221, 90100988), (284, 70113797), (442, 45050494), (884, 22525247), (923, 21573476), (1207, 16497364), (1846, 10786738), (2414, 8248682), (3692, 5393369), (4828, 4124341), (15691, 1269028), (31382, 634514), (62764, 317257)]