18751612

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 39817008

約数和(自身を除く): 21065396

約数列:

[1, 2, 4, 11, 17, 22, 34, 43, 44, 53, 68, 86, 106, 121, 172, 187, 212, 242, 374, 473, 484, 583, 731, 748, 901, 946, 1166, 1462, 1802, 1892, 2057, 2279, 2332, 2924, 3604, 4114, 4558, 5203, 6413, 8041, 8228, 9116, 9911, 10406, 12826, 16082, 19822, 20812, 25069, 25652, 32164, 38743, 39644, 50138, 77486, 88451, 100276, 109021, 154972, 176902, 218042, 275759, 353804, 426173, 436084, 551518, 852346, 1103036, 1704692, 4687903, 9375806, 18751612]

約数ペア:

[(1, 18751612), (2, 9375806), (4, 4687903), (11, 1704692), (17, 1103036), (22, 852346), (34, 551518), (43, 436084), (44, 426173), (53, 353804), (68, 275759), (86, 218042), (106, 176902), (121, 154972), (172, 109021), (187, 100276), (212, 88451), (242, 77486), (374, 50138), (473, 39644), (484, 38743), (583, 32164), (731, 25652), (748, 25069), (901, 20812), (946, 19822), (1166, 16082), (1462, 12826), (1802, 10406), (1892, 9911), (2057, 9116), (2279, 8228), (2332, 8041), (2924, 6413), (3604, 5203), (4114, 4558)]