19538558

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{271}}^1$

素因数の和:392

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 13362562

約数列:

[1, 2, 13, 26, 47, 59, 94, 118, 271, 542, 611, 767, 1222, 1534, 2773, 3523, 5546, 7046, 12737, 15989, 25474, 31978, 36049, 72098, 165581, 207857, 331162, 415714, 751483, 1502966, 9769279, 19538558]

約数ペア:

[(1, 19538558), (2, 9769279), (13, 1502966), (26, 751483), (47, 415714), (59, 331162), (94, 207857), (118, 165581), (271, 72098), (542, 36049), (611, 31978), (767, 25474), (1222, 15989), (1534, 12737), (2773, 7046), (3523, 5546)]