21339708

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:191

約数の個数: 96

約数和(自身を含む): 57153600

約数和(自身を除く): 35813892

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 29, 39, 52, 53, 58, 78, 87, 89, 106, 116, 156, 159, 174, 178, 212, 267, 318, 348, 356, 377, 534, 636, 689, 754, 1068, 1131, 1157, 1378, 1508, 1537, 2067, 2262, 2314, 2581, 2756, 3074, 3471, 4134, 4524, 4611, 4628, 4717, 5162, 6148, 6942, 7743, 8268, 9222, 9434, 10324, 13884, 14151, 15486, 18444, 18868, 19981, 28302, 30972, 33553, 39962, 56604, 59943, 61321, 67106, 79924, 100659, 119886, 122642, 134212, 136793, 183963, 201318, 239772, 245284, 273586, 367926, 402636, 410379, 547172, 735852, 820758, 1641516, 1778309, 3556618, 5334927, 7113236, 10669854, 21339708]

約数ペア:

[(1, 21339708), (2, 10669854), (3, 7113236), (4, 5334927), (6, 3556618), (12, 1778309), (13, 1641516), (26, 820758), (29, 735852), (39, 547172), (52, 410379), (53, 402636), (58, 367926), (78, 273586), (87, 245284), (89, 239772), (106, 201318), (116, 183963), (156, 136793), (159, 134212), (174, 122642), (178, 119886), (212, 100659), (267, 79924), (318, 67106), (348, 61321), (356, 59943), (377, 56604), (534, 39962), (636, 33553), (689, 30972), (754, 28302), (1068, 19981), (1131, 18868), (1157, 18444), (1378, 15486), (1508, 14151), (1537, 13884), (2067, 10324), (2262, 9434), (2314, 9222), (2581, 8268), (2756, 7743), (3074, 6942), (3471, 6148), (4134, 5162), (4524, 4717), (4611, 4628)]