21948465

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:670

約数の個数: 64

約数和(自身を含む): 45268992

約数和(自身を除く): 23320527

約数列:

[1, 3, 5, 7, 11, 15, 21, 31, 33, 35, 55, 77, 93, 105, 155, 165, 217, 231, 341, 385, 465, 613, 651, 1023, 1085, 1155, 1705, 1839, 2387, 3065, 3255, 4291, 5115, 6743, 7161, 9195, 11935, 12873, 19003, 20229, 21455, 33715, 35805, 47201, 57009, 64365, 95015, 101145, 133021, 141603, 209033, 236005, 285045, 399063, 627099, 665105, 708015, 1045165, 1463231, 1995315, 3135495, 4389693, 7316155, 21948465]

約数ペア:

[(1, 21948465), (3, 7316155), (5, 4389693), (7, 3135495), (11, 1995315), (15, 1463231), (21, 1045165), (31, 708015), (33, 665105), (35, 627099), (55, 399063), (77, 285045), (93, 236005), (105, 209033), (155, 141603), (165, 133021), (217, 101145), (231, 95015), (341, 64365), (385, 57009), (465, 47201), (613, 35805), (651, 33715), (1023, 21455), (1085, 20229), (1155, 19003), (1705, 12873), (1839, 11935), (2387, 9195), (3065, 7161), (3255, 6743), (4291, 5115)]