21489690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{11743}}^1$

素因数の和:11814

約数の個数: 32

約数和(自身を含む): 52425216

約数和(自身を除く): 30935526

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 122, 183, 305, 366, 610, 915, 1830, 11743, 23486, 35229, 58715, 70458, 117430, 176145, 352290, 716323, 1432646, 2148969, 3581615, 4297938, 7163230, 10744845, 21489690]

約数ペア:

[(1, 21489690), (2, 10744845), (3, 7163230), (5, 4297938), (6, 3581615), (10, 2148969), (15, 1432646), (30, 716323), (61, 352290), (122, 176145), (183, 117430), (305, 70458), (366, 58715), (610, 35229), (915, 23486), (1830, 11743)]