21417954

素因数分解:

$2^1\times 3^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 43955520

約数和(自身を除く): 22537566

約数列:

[1, 2, 3, 6, 61, 122, 139, 183, 278, 366, 417, 421, 834, 842, 1263, 2526, 8479, 16958, 25437, 25681, 50874, 51362, 58519, 77043, 117038, 154086, 175557, 351114, 3569659, 7139318, 10708977, 21417954]

約数ペア:

[(1, 21417954), (2, 10708977), (3, 7139318), (6, 3569659), (61, 351114), (122, 175557), (139, 154086), (183, 117038), (278, 77043), (366, 58519), (417, 51362), (421, 50874), (834, 25681), (842, 25437), (1263, 16958), (2526, 8479)]