20472975

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{4789}}^1$

素因数の和:4824

約数の個数: 36

約数和(自身を含む): 38607400

約数和(自身を除く): 18134425

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 171, 225, 285, 475, 855, 1425, 4275, 4789, 14367, 23945, 43101, 71835, 90991, 119725, 215505, 272973, 359175, 454955, 818919, 1077525, 1364865, 2274775, 4094595, 6824325, 20472975]

約数ペア:

[(1, 20472975), (3, 6824325), (5, 4094595), (9, 2274775), (15, 1364865), (19, 1077525), (25, 818919), (45, 454955), (57, 359175), (75, 272973), (95, 215505), (171, 119725), (225, 90991), (285, 71835), (475, 43101), (855, 23945), (1425, 14367), (4275, 4789)]