19545604

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 39450880

約数和(自身を除く): 19905276

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 73, 76, 146, 247, 271, 292, 494, 542, 949, 988, 1084, 1387, 1898, 2774, 3523, 3796, 5149, 5548, 7046, 10298, 14092, 18031, 19783, 20596, 36062, 39566, 66937, 72124, 79132, 133874, 257179, 267748, 375877, 514358, 751754, 1028716, 1503508, 4886401, 9772802, 19545604]

約数ペア:

[(1, 19545604), (2, 9772802), (4, 4886401), (13, 1503508), (19, 1028716), (26, 751754), (38, 514358), (52, 375877), (73, 267748), (76, 257179), (146, 133874), (247, 79132), (271, 72124), (292, 66937), (494, 39566), (542, 36062), (949, 20596), (988, 19783), (1084, 18031), (1387, 14092), (1898, 10298), (2774, 7046), (3523, 5548), (3796, 5149)]