19972838

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:332

約数の個数: 32

約数和(自身を含む): 32970240

約数和(自身を除く): 12997402

約数列:

[1, 2, 19, 38, 47, 53, 94, 106, 211, 422, 893, 1007, 1786, 2014, 2491, 4009, 4982, 8018, 9917, 11183, 19834, 22366, 47329, 94658, 188423, 212477, 376846, 424954, 525601, 1051202, 9986419, 19972838]

約数ペア:

[(1, 19972838), (2, 9986419), (19, 1051202), (38, 525601), (47, 424954), (53, 376846), (94, 212477), (106, 188423), (211, 94658), (422, 47329), (893, 22366), (1007, 19834), (1786, 11183), (2014, 9917), (2491, 8018), (4009, 4982)]