21368178

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{499}}^1$

素因数の和:584

約数の個数: 64

約数和(自身を含む): 52080000

約数和(自身を除く): 30711822

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 61, 78, 117, 122, 183, 234, 351, 366, 499, 549, 702, 793, 998, 1098, 1497, 1586, 1647, 2379, 2994, 3294, 4491, 4758, 6487, 7137, 8982, 12974, 13473, 14274, 19461, 21411, 26946, 30439, 38922, 42822, 58383, 60878, 91317, 116766, 175149, 182634, 273951, 350298, 395707, 547902, 791414, 821853, 1187121, 1643706, 2374242, 3561363, 7122726, 10684089, 21368178]

約数ペア:

[(1, 21368178), (2, 10684089), (3, 7122726), (6, 3561363), (9, 2374242), (13, 1643706), (18, 1187121), (26, 821853), (27, 791414), (39, 547902), (54, 395707), (61, 350298), (78, 273951), (117, 182634), (122, 175149), (183, 116766), (234, 91317), (351, 60878), (366, 58383), (499, 42822), (549, 38922), (702, 30439), (793, 26946), (998, 21411), (1098, 19461), (1497, 14274), (1586, 13473), (1647, 12974), (2379, 8982), (2994, 7137), (3294, 6487), (4491, 4758)]