19690455

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{317}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 32695488

約数和(自身を除く): 13005033

約数列:

[1, 3, 5, 15, 41, 101, 123, 205, 303, 317, 505, 615, 951, 1515, 1585, 4141, 4755, 12423, 12997, 20705, 32017, 38991, 62115, 64985, 96051, 160085, 194955, 480255, 1312697, 3938091, 6563485, 19690455]

約数ペア:

[(1, 19690455), (3, 6563485), (5, 3938091), (15, 1312697), (41, 480255), (101, 194955), (123, 160085), (205, 96051), (303, 64985), (317, 62115), (505, 38991), (615, 32017), (951, 20705), (1515, 12997), (1585, 12423), (4141, 4755)]