19817308

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 44011520

約数和(自身を除く): 24194212

約数列:

[1, 2, 4, 7, 14, 17, 28, 31, 34, 62, 68, 79, 119, 124, 158, 217, 238, 289, 316, 434, 476, 527, 553, 578, 868, 1054, 1106, 1156, 1343, 2023, 2108, 2212, 2449, 2686, 3689, 4046, 4898, 5372, 7378, 8092, 8959, 9401, 9796, 14756, 17143, 17918, 18802, 22831, 34286, 35836, 37604, 41633, 45662, 62713, 68572, 83266, 91324, 125426, 159817, 166532, 250852, 291431, 319634, 582862, 639268, 707761, 1165724, 1415522, 2831044, 4954327, 9908654, 19817308]

約数ペア:

[(1, 19817308), (2, 9908654), (4, 4954327), (7, 2831044), (14, 1415522), (17, 1165724), (28, 707761), (31, 639268), (34, 582862), (62, 319634), (68, 291431), (79, 250852), (119, 166532), (124, 159817), (158, 125426), (217, 91324), (238, 83266), (289, 68572), (316, 62713), (434, 45662), (476, 41633), (527, 37604), (553, 35836), (578, 34286), (868, 22831), (1054, 18802), (1106, 17918), (1156, 17143), (1343, 14756), (2023, 9796), (2108, 9401), (2212, 8959), (2449, 8092), (2686, 7378), (3689, 5372), (4046, 4898)]