19889116

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 20330084

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 149, 151, 221, 298, 302, 442, 596, 604, 884, 1937, 1963, 2533, 2567, 3874, 3926, 5066, 5134, 7748, 7852, 10132, 10268, 22499, 32929, 33371, 44998, 65858, 66742, 89996, 131716, 133484, 292487, 382483, 584974, 764966, 1169948, 1529932, 4972279, 9944558, 19889116]

約数ペア:

[(1, 19889116), (2, 9944558), (4, 4972279), (13, 1529932), (17, 1169948), (26, 764966), (34, 584974), (52, 382483), (68, 292487), (149, 133484), (151, 131716), (221, 89996), (298, 66742), (302, 65858), (442, 44998), (596, 33371), (604, 32929), (884, 22499), (1937, 10268), (1963, 10132), (2533, 7852), (2567, 7748), (3874, 5134), (3926, 5066)]