19868004

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 120

約数和(自身を含む): 57629880

約数和(自身を除く): 37761876

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 53, 54, 78, 81, 89, 106, 108, 117, 156, 159, 162, 178, 212, 234, 267, 318, 324, 351, 356, 468, 477, 534, 636, 689, 702, 801, 954, 1053, 1068, 1157, 1378, 1404, 1431, 1602, 1908, 2067, 2106, 2314, 2403, 2756, 2862, 3204, 3471, 4134, 4212, 4293, 4628, 4717, 4806, 5724, 6201, 6942, 7209, 8268, 8586, 9434, 9612, 10413, 12402, 13884, 14151, 14418, 17172, 18603, 18868, 20826, 24804, 28302, 28836, 31239, 37206, 41652, 42453, 55809, 56604, 61321, 62478, 74412, 84906, 93717, 111618, 122642, 124956, 127359, 169812, 183963, 187434, 223236, 245284, 254718, 367926, 374868, 382077, 509436, 551889, 735852, 764154, 1103778, 1528308, 1655667, 2207556, 3311334, 4967001, 6622668, 9934002, 19868004]

約数ペア:

[(1, 19868004), (2, 9934002), (3, 6622668), (4, 4967001), (6, 3311334), (9, 2207556), (12, 1655667), (13, 1528308), (18, 1103778), (26, 764154), (27, 735852), (36, 551889), (39, 509436), (52, 382077), (53, 374868), (54, 367926), (78, 254718), (81, 245284), (89, 223236), (106, 187434), (108, 183963), (117, 169812), (156, 127359), (159, 124956), (162, 122642), (178, 111618), (212, 93717), (234, 84906), (267, 74412), (318, 62478), (324, 61321), (351, 56604), (356, 55809), (468, 42453), (477, 41652), (534, 37206), (636, 31239), (689, 28836), (702, 28302), (801, 24804), (954, 20826), (1053, 18868), (1068, 18603), (1157, 17172), (1378, 14418), (1404, 14151), (1431, 13884), (1602, 12402), (1908, 10413), (2067, 9612), (2106, 9434), (2314, 8586), (2403, 8268), (2756, 7209), (2862, 6942), (3204, 6201), (3471, 5724), (4134, 4806), (4212, 4717), (4293, 4628)]