20181871809

素因数分解:

$3^2\times {\mathrm{11}}^4\times {\mathrm{103}}^1\times {\mathrm{1487}}^1$

素因数の和:1640

約数の個数: 60

約数和(自身を含む): 32399652480

約数和(自身を除く): 12217780671

約数列:

[1, 3, 9, 11, 33, 99, 103, 121, 309, 363, 927, 1089, 1133, 1331, 1487, 3399, 3993, 4461, 10197, 11979, 12463, 13383, 14641, 16357, 37389, 43923, 49071, 112167, 131769, 137093, 147213, 153161, 179927, 411279, 459483, 539781, 1233837, 1378449, 1508023, 1619343, 1684771, 1979197, 4524069, 5054313, 5937591, 13572207, 15162939, 17812773, 18532481, 21771167, 55597443, 65313501, 166792329, 195940503, 203857291, 611571873, 1834715619, 2242430201, 6727290603, 20181871809]

約数ペア:

[(1, 20181871809), (3, 6727290603), (9, 2242430201), (11, 1834715619), (33, 611571873), (99, 203857291), (103, 195940503), (121, 166792329), (309, 65313501), (363, 55597443), (927, 21771167), (1089, 18532481), (1133, 17812773), (1331, 15162939), (1487, 13572207), (3399, 5937591), (3993, 5054313), (4461, 4524069), (10197, 1979197), (11979, 1684771), (12463, 1619343), (13383, 1508023), (14641, 1378449), (16357, 1233837), (37389, 539781), (43923, 459483), (49071, 411279), (112167, 179927), (131769, 153161), (137093, 147213)]