21034845

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{877}}^1$

素因数の和:942

約数の個数: 48

約数和(自身を含む): 40268592

約数和(自身を除く): 19233747

約数列:

[1, 3, 5, 9, 13, 15, 39, 41, 45, 65, 117, 123, 195, 205, 369, 533, 585, 615, 877, 1599, 1845, 2631, 2665, 4385, 4797, 7893, 7995, 11401, 13155, 23985, 34203, 35957, 39465, 57005, 102609, 107871, 171015, 179785, 323613, 467441, 513045, 539355, 1402323, 1618065, 2337205, 4206969, 7011615, 21034845]

約数ペア:

[(1, 21034845), (3, 7011615), (5, 4206969), (9, 2337205), (13, 1618065), (15, 1402323), (39, 539355), (41, 513045), (45, 467441), (65, 323613), (117, 179785), (123, 171015), (195, 107871), (205, 102609), (369, 57005), (533, 39465), (585, 35957), (615, 34203), (877, 23985), (1599, 13155), (1845, 11401), (2631, 7995), (2665, 7893), (4385, 4797)]