19974465

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{919}}^1$

素因数の和:963

約数の個数: 64

約数和(自身を含む): 42393600

約数和(自身を除く): 22419135

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 27, 35, 45, 63, 69, 105, 115, 135, 161, 189, 207, 315, 345, 483, 621, 805, 919, 945, 1035, 1449, 2415, 2757, 3105, 4347, 4595, 6433, 7245, 8271, 13785, 19299, 21137, 21735, 24813, 32165, 41355, 57897, 63411, 96495, 105685, 124065, 147959, 173691, 190233, 289485, 317055, 443877, 570699, 739795, 868455, 951165, 1331631, 2219385, 2853495, 3994893, 6658155, 19974465]

約数ペア:

[(1, 19974465), (3, 6658155), (5, 3994893), (7, 2853495), (9, 2219385), (15, 1331631), (21, 951165), (23, 868455), (27, 739795), (35, 570699), (45, 443877), (63, 317055), (69, 289485), (105, 190233), (115, 173691), (135, 147959), (161, 124065), (189, 105685), (207, 96495), (315, 63411), (345, 57897), (483, 41355), (621, 32165), (805, 24813), (919, 21735), (945, 21137), (1035, 19299), (1449, 13785), (2415, 8271), (2757, 7245), (3105, 6433), (4347, 4595)]