19419309

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 34978944

約数和(自身を除く): 15559635

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 131, 181, 273, 393, 543, 819, 917, 1179, 1267, 1629, 1703, 2353, 2751, 3801, 5109, 7059, 8253, 11403, 11921, 15327, 16471, 21177, 23711, 35763, 49413, 71133, 107289, 148239, 165977, 213399, 308243, 497931, 924729, 1493793, 2157701, 2774187, 6473103, 19419309]

約数ペア:

[(1, 19419309), (3, 6473103), (7, 2774187), (9, 2157701), (13, 1493793), (21, 924729), (39, 497931), (63, 308243), (91, 213399), (117, 165977), (131, 148239), (181, 107289), (273, 71133), (393, 49413), (543, 35763), (819, 23711), (917, 21177), (1179, 16471), (1267, 15327), (1629, 11921), (1703, 11403), (2353, 8253), (2751, 7059), (3801, 5109)]