20421870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3137}}^1$

素因数の和:3185

約数の個数: 64

約数和(自身を含む): 57839616

約数和(自身を除く): 37417746

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 155, 186, 210, 217, 310, 434, 465, 651, 930, 1085, 1302, 2170, 3137, 3255, 6274, 6510, 9411, 15685, 18822, 21959, 31370, 43918, 47055, 65877, 94110, 97247, 109795, 131754, 194494, 219590, 291741, 329385, 486235, 583482, 658770, 680729, 972470, 1361458, 1458705, 2042187, 2917410, 3403645, 4084374, 6807290, 10210935, 20421870]

約数ペア:

[(1, 20421870), (2, 10210935), (3, 6807290), (5, 4084374), (6, 3403645), (7, 2917410), (10, 2042187), (14, 1458705), (15, 1361458), (21, 972470), (30, 680729), (31, 658770), (35, 583482), (42, 486235), (62, 329385), (70, 291741), (93, 219590), (105, 194494), (155, 131754), (186, 109795), (210, 97247), (217, 94110), (310, 65877), (434, 47055), (465, 43918), (651, 31370), (930, 21959), (1085, 18822), (1302, 15685), (2170, 9411), (3137, 6510), (3255, 6274)]