31690566

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:397

約数の個数: 48

約数和(自身を含む): 70525728

約数和(自身を除く): 38835162

約数列:

[1, 2, 3, 6, 9, 18, 71, 137, 142, 181, 213, 274, 362, 411, 426, 543, 639, 822, 1086, 1233, 1278, 1629, 2466, 3258, 9727, 12851, 19454, 24797, 25702, 29181, 38553, 49594, 58362, 74391, 77106, 87543, 115659, 148782, 175086, 223173, 231318, 446346, 1760587, 3521174, 5281761, 10563522, 15845283, 31690566]

約数ペア:

[(1, 31690566), (2, 15845283), (3, 10563522), (6, 5281761), (9, 3521174), (18, 1760587), (71, 446346), (137, 231318), (142, 223173), (181, 175086), (213, 148782), (274, 115659), (362, 87543), (411, 77106), (426, 74391), (543, 58362), (639, 49594), (822, 38553), (1086, 29181), (1233, 25702), (1278, 24797), (1629, 19454), (2466, 12851), (3258, 9727)]