18993824

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{467}}^1$

素因数の和:549

約数の個数: 48

約数和(自身を含む): 39626496

約数和(自身を除く): 20632672

約数列:

[1, 2, 4, 8, 16, 31, 32, 41, 62, 82, 124, 164, 248, 328, 467, 496, 656, 934, 992, 1271, 1312, 1868, 2542, 3736, 5084, 7472, 10168, 14477, 14944, 19147, 20336, 28954, 38294, 40672, 57908, 76588, 115816, 153176, 231632, 306352, 463264, 593557, 612704, 1187114, 2374228, 4748456, 9496912, 18993824]

約数ペア:

[(1, 18993824), (2, 9496912), (4, 4748456), (8, 2374228), (16, 1187114), (31, 612704), (32, 593557), (41, 463264), (62, 306352), (82, 231632), (124, 153176), (164, 115816), (248, 76588), (328, 57908), (467, 40672), (496, 38294), (656, 28954), (934, 20336), (992, 19147), (1271, 14944), (1312, 14477), (1868, 10168), (2542, 7472), (3736, 5084)]