198694458

素因数分解:

$2^1\times 3^4\times {\mathrm{89}}^1\times {\mathrm{13781}}^1$

素因数の和:13884

約数の個数: 40

約数和(自身を含む): 450257940

約数和(自身を除く): 251563482

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 89, 162, 178, 267, 534, 801, 1602, 2403, 4806, 7209, 13781, 14418, 27562, 41343, 82686, 124029, 248058, 372087, 744174, 1116261, 1226509, 2232522, 2453018, 3679527, 7359054, 11038581, 22077162, 33115743, 66231486, 99347229, 198694458]

約数ペア:

[(1, 198694458), (2, 99347229), (3, 66231486), (6, 33115743), (9, 22077162), (18, 11038581), (27, 7359054), (54, 3679527), (81, 2453018), (89, 2232522), (162, 1226509), (178, 1116261), (267, 744174), (534, 372087), (801, 248058), (1602, 124029), (2403, 82686), (4806, 41343), (7209, 27562), (13781, 14418)]