19684190

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{491}}^1$

素因数の和:728

約数の個数: 32

約数和(自身を含む): 37549440

約数和(自身を除く): 17865250

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 211, 422, 491, 982, 1055, 2110, 2455, 4009, 4910, 8018, 9329, 18658, 20045, 40090, 46645, 93290, 103601, 207202, 518005, 1036010, 1968419, 3936838, 9842095, 19684190]

約数ペア:

[(1, 19684190), (2, 9842095), (5, 3936838), (10, 1968419), (19, 1036010), (38, 518005), (95, 207202), (190, 103601), (211, 93290), (422, 46645), (491, 40090), (982, 20045), (1055, 18658), (2110, 9329), (2455, 8018), (4009, 4910)]