18874908

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1301}}^1$

素因数の和:1355

約数の個数: 72

約数和(自身を含む): 53079936

約数和(自身を除く): 34205028

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 186, 234, 279, 372, 403, 468, 558, 806, 1116, 1209, 1301, 1612, 2418, 2602, 3627, 3903, 4836, 5204, 7254, 7806, 11709, 14508, 15612, 16913, 23418, 33826, 40331, 46836, 50739, 67652, 80662, 101478, 120993, 152217, 161324, 202956, 241986, 304434, 362979, 483972, 524303, 608868, 725958, 1048606, 1451916, 1572909, 2097212, 3145818, 4718727, 6291636, 9437454, 18874908]

約数ペア:

[(1, 18874908), (2, 9437454), (3, 6291636), (4, 4718727), (6, 3145818), (9, 2097212), (12, 1572909), (13, 1451916), (18, 1048606), (26, 725958), (31, 608868), (36, 524303), (39, 483972), (52, 362979), (62, 304434), (78, 241986), (93, 202956), (117, 161324), (124, 152217), (156, 120993), (186, 101478), (234, 80662), (279, 67652), (372, 50739), (403, 46836), (468, 40331), (558, 33826), (806, 23418), (1116, 16913), (1209, 15612), (1301, 14508), (1612, 11709), (2418, 7806), (2602, 7254), (3627, 5204), (3903, 4836)]