20849115

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 19793445

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 41, 87, 105, 123, 145, 167, 203, 205, 287, 435, 501, 609, 615, 835, 861, 1015, 1169, 1189, 1435, 2505, 3045, 3507, 3567, 4305, 4843, 5845, 5945, 6847, 8323, 14529, 17535, 17835, 20541, 24215, 24969, 33901, 34235, 41615, 47929, 72645, 101703, 102705, 124845, 143787, 169505, 198563, 239645, 508515, 595689, 718935, 992815, 1389941, 2978445, 4169823, 6949705, 20849115]

約数ペア:

[(1, 20849115), (3, 6949705), (5, 4169823), (7, 2978445), (15, 1389941), (21, 992815), (29, 718935), (35, 595689), (41, 508515), (87, 239645), (105, 198563), (123, 169505), (145, 143787), (167, 124845), (203, 102705), (205, 101703), (287, 72645), (435, 47929), (501, 41615), (609, 34235), (615, 33901), (835, 24969), (861, 24215), (1015, 20541), (1169, 17835), (1189, 17535), (1435, 14529), (2505, 8323), (3045, 6847), (3507, 5945), (3567, 5845), (4305, 4843)]