19197711

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 31682560

約数和(自身を除く): 12484849

約数列:

[1, 3, 9, 13, 31, 39, 67, 79, 93, 117, 201, 237, 279, 403, 603, 711, 871, 1027, 1209, 2077, 2449, 2613, 3081, 3627, 5293, 6231, 7347, 7839, 9243, 15879, 18693, 22041, 27001, 31837, 47637, 68809, 81003, 95511, 164083, 206427, 243009, 286533, 492249, 619281, 1476747, 2133079, 6399237, 19197711]

約数ペア:

[(1, 19197711), (3, 6399237), (9, 2133079), (13, 1476747), (31, 619281), (39, 492249), (67, 286533), (79, 243009), (93, 206427), (117, 164083), (201, 95511), (237, 81003), (279, 68809), (403, 47637), (603, 31837), (711, 27001), (871, 22041), (1027, 18693), (1209, 15879), (2077, 9243), (2449, 7839), (2613, 7347), (3081, 6231), (3627, 5293)]