19927854

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{503}}^1$

素因数の和:613

約数の個数: 48

約数和(自身を含む): 45287424

約数和(自身を除く): 25359570

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 71, 93, 142, 186, 213, 279, 426, 503, 558, 639, 1006, 1278, 1509, 2201, 3018, 4402, 4527, 6603, 9054, 13206, 15593, 19809, 31186, 35713, 39618, 46779, 71426, 93558, 107139, 140337, 214278, 280674, 321417, 642834, 1107103, 2214206, 3321309, 6642618, 9963927, 19927854]

約数ペア:

[(1, 19927854), (2, 9963927), (3, 6642618), (6, 3321309), (9, 2214206), (18, 1107103), (31, 642834), (62, 321417), (71, 280674), (93, 214278), (142, 140337), (186, 107139), (213, 93558), (279, 71426), (426, 46779), (503, 39618), (558, 35713), (639, 31186), (1006, 19809), (1278, 15593), (1509, 13206), (2201, 9054), (3018, 6603), (4402, 4527)]