18967845

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{461}}^1$

素因数の和:693

約数の個数: 32

約数和(自身を含む): 32909184

約数和(自身を除く): 13941339

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 211, 461, 633, 1055, 1383, 2305, 2743, 3165, 5993, 6915, 8229, 13715, 17979, 29965, 41145, 89895, 97271, 291813, 486355, 1264523, 1459065, 3793569, 6322615, 18967845]

約数ペア:

[(1, 18967845), (3, 6322615), (5, 3793569), (13, 1459065), (15, 1264523), (39, 486355), (65, 291813), (195, 97271), (211, 89895), (461, 41145), (633, 29965), (1055, 17979), (1383, 13715), (2305, 8229), (2743, 6915), (3165, 5993)]