18943551

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 32672640

約数和(自身を除く): 13729089

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 81, 99, 171, 209, 243, 297, 373, 513, 627, 891, 1119, 1539, 1881, 2673, 3357, 4103, 4617, 5643, 7087, 10071, 12309, 16929, 21261, 30213, 36927, 50787, 63783, 77957, 90639, 110781, 191349, 233871, 332343, 574047, 701613, 997029, 1722141, 2104839, 6314517, 18943551]

約数ペア:

[(1, 18943551), (3, 6314517), (9, 2104839), (11, 1722141), (19, 997029), (27, 701613), (33, 574047), (57, 332343), (81, 233871), (99, 191349), (171, 110781), (209, 90639), (243, 77957), (297, 63783), (373, 50787), (513, 36927), (627, 30213), (891, 21261), (1119, 16929), (1539, 12309), (1881, 10071), (2673, 7087), (3357, 5643), (4103, 4617)]