21487518

素因数分解:

$2^1\times 3^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1$

素因数の和:228

約数の個数: 96

約数和(自身を含む): 55036800

約数和(自身を除く): 33549282

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 27, 38, 39, 54, 57, 78, 81, 114, 117, 162, 171, 179, 234, 243, 247, 342, 351, 358, 486, 494, 513, 537, 702, 741, 1026, 1053, 1074, 1482, 1539, 1611, 2106, 2223, 2327, 3078, 3159, 3222, 3401, 4446, 4617, 4654, 4833, 6318, 6669, 6802, 6981, 9234, 9666, 10203, 13338, 13962, 14499, 20007, 20406, 20943, 28998, 30609, 40014, 41886, 43497, 44213, 60021, 61218, 62829, 86994, 88426, 91827, 120042, 125658, 132639, 183654, 188487, 265278, 275481, 376974, 397917, 550962, 565461, 795834, 826443, 1130922, 1193751, 1652886, 2387502, 3581253, 7162506, 10743759, 21487518]

約数ペア:

[(1, 21487518), (2, 10743759), (3, 7162506), (6, 3581253), (9, 2387502), (13, 1652886), (18, 1193751), (19, 1130922), (26, 826443), (27, 795834), (38, 565461), (39, 550962), (54, 397917), (57, 376974), (78, 275481), (81, 265278), (114, 188487), (117, 183654), (162, 132639), (171, 125658), (179, 120042), (234, 91827), (243, 88426), (247, 86994), (342, 62829), (351, 61218), (358, 60021), (486, 44213), (494, 43497), (513, 41886), (537, 40014), (702, 30609), (741, 28998), (1026, 20943), (1053, 20406), (1074, 20007), (1482, 14499), (1539, 13962), (1611, 13338), (2106, 10203), (2223, 9666), (2327, 9234), (3078, 6981), (3159, 6802), (3222, 6669), (3401, 6318), (4446, 4833), (4617, 4654)]