21408072

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2089}}^1$

素因数の和:2166

約数の個数: 64

約数和(自身を含む): 62198400

約数和(自身を除く): 40790328

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 61, 84, 122, 168, 183, 244, 366, 427, 488, 732, 854, 1281, 1464, 1708, 2089, 2562, 3416, 4178, 5124, 6267, 8356, 10248, 12534, 14623, 16712, 25068, 29246, 43869, 50136, 58492, 87738, 116984, 127429, 175476, 254858, 350952, 382287, 509716, 764574, 892003, 1019432, 1529148, 1784006, 2676009, 3058296, 3568012, 5352018, 7136024, 10704036, 21408072]

約数ペア:

[(1, 21408072), (2, 10704036), (3, 7136024), (4, 5352018), (6, 3568012), (7, 3058296), (8, 2676009), (12, 1784006), (14, 1529148), (21, 1019432), (24, 892003), (28, 764574), (42, 509716), (56, 382287), (61, 350952), (84, 254858), (122, 175476), (168, 127429), (183, 116984), (244, 87738), (366, 58492), (427, 50136), (488, 43869), (732, 29246), (854, 25068), (1281, 16712), (1464, 14623), (1708, 12534), (2089, 10248), (2562, 8356), (3416, 6267), (4178, 5124)]