16815995

素因数分解:

$5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 23970816

約数和(自身を除く): 7154821

約数列:

[1, 5, 7, 35, 67, 71, 101, 335, 355, 469, 497, 505, 707, 2345, 2485, 3535, 4757, 6767, 7171, 23785, 33299, 33835, 35855, 47369, 50197, 166495, 236845, 250985, 480457, 2402285, 3363199, 16815995]

約数ペア:

[(1, 16815995), (5, 3363199), (7, 2402285), (35, 480457), (67, 250985), (71, 236845), (101, 166495), (335, 50197), (355, 47369), (469, 35855), (497, 33835), (505, 33299), (707, 23785), (2345, 7171), (2485, 6767), (3535, 4757)]