21149850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:256

約数の個数: 96

約数和(自身を含む): 56871360

約数和(自身を除く): 35721510

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 25, 30, 38, 41, 50, 57, 75, 82, 95, 114, 123, 150, 181, 190, 205, 246, 285, 362, 410, 475, 543, 570, 615, 779, 905, 950, 1025, 1086, 1230, 1425, 1558, 1810, 2050, 2337, 2715, 2850, 3075, 3439, 3895, 4525, 4674, 5430, 6150, 6878, 7421, 7790, 9050, 10317, 11685, 13575, 14842, 17195, 19475, 20634, 22263, 23370, 27150, 34390, 37105, 38950, 44526, 51585, 58425, 74210, 85975, 103170, 111315, 116850, 140999, 171950, 185525, 222630, 257925, 281998, 371050, 422997, 515850, 556575, 704995, 845994, 1113150, 1409990, 2114985, 3524975, 4229970, 7049950, 10574925, 21149850]

約数ペア:

[(1, 21149850), (2, 10574925), (3, 7049950), (5, 4229970), (6, 3524975), (10, 2114985), (15, 1409990), (19, 1113150), (25, 845994), (30, 704995), (38, 556575), (41, 515850), (50, 422997), (57, 371050), (75, 281998), (82, 257925), (95, 222630), (114, 185525), (123, 171950), (150, 140999), (181, 116850), (190, 111315), (205, 103170), (246, 85975), (285, 74210), (362, 58425), (410, 51585), (475, 44526), (543, 38950), (570, 37105), (615, 34390), (779, 27150), (905, 23370), (950, 22263), (1025, 20634), (1086, 19475), (1230, 17195), (1425, 14842), (1558, 13575), (1810, 11685), (2050, 10317), (2337, 9050), (2715, 7790), (2850, 7421), (3075, 6878), (3439, 6150), (3895, 5430), (4525, 4674)]