998244

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:111

約数の個数: 72

約数和(自身を含む): 2853760

約数和(自身を除く): 1855516

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 79, 81, 108, 117, 156, 158, 162, 234, 237, 243, 316, 324, 351, 468, 474, 486, 702, 711, 948, 972, 1027, 1053, 1404, 1422, 2054, 2106, 2133, 2844, 3081, 3159, 4108, 4212, 4266, 6162, 6318, 6399, 8532, 9243, 12324, 12636, 12798, 18486, 19197, 25596, 27729, 36972, 38394, 55458, 76788, 83187, 110916, 166374, 249561, 332748, 499122, 998244]

約数ペア:

[(1, 998244), (2, 499122), (3, 332748), (4, 249561), (6, 166374), (9, 110916), (12, 83187), (13, 76788), (18, 55458), (26, 38394), (27, 36972), (36, 27729), (39, 25596), (52, 19197), (54, 18486), (78, 12798), (79, 12636), (81, 12324), (108, 9243), (117, 8532), (156, 6399), (158, 6318), (162, 6162), (234, 4266), (237, 4212), (243, 4108), (316, 3159), (324, 3081), (351, 2844), (468, 2133), (474, 2106), (486, 2054), (702, 1422), (711, 1404), (948, 1053), (972, 1027)]