18797272

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2963}}^1$

素因数の和:3043

約数の個数: 32

約数和(自身を含む): 38591280

約数和(自身を除く): 19794008

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 2963, 3172, 5926, 6344, 11852, 23704, 38519, 77038, 154076, 180743, 308152, 361486, 722972, 1445944, 2349659, 4699318, 9398636, 18797272]

約数ペア:

[(1, 18797272), (2, 9398636), (4, 4699318), (8, 2349659), (13, 1445944), (26, 722972), (52, 361486), (61, 308152), (104, 180743), (122, 154076), (244, 77038), (488, 38519), (793, 23704), (1586, 11852), (2963, 6344), (3172, 5926)]