21398112

素因数分解:

$2^5\times 3^2\times {\mathrm{191}}^1\times {\mathrm{389}}^1$

素因数の和:596

約数の個数: 72

約数和(自身を含む): 61326720

約数和(自身を除く): 39928608

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 191, 288, 382, 389, 573, 764, 778, 1146, 1167, 1528, 1556, 1719, 2292, 2334, 3056, 3112, 3438, 3501, 4584, 4668, 6112, 6224, 6876, 7002, 9168, 9336, 12448, 13752, 14004, 18336, 18672, 27504, 28008, 37344, 55008, 56016, 74299, 112032, 148598, 222897, 297196, 445794, 594392, 668691, 891588, 1188784, 1337382, 1783176, 2377568, 2674764, 3566352, 5349528, 7132704, 10699056, 21398112]

約数ペア:

[(1, 21398112), (2, 10699056), (3, 7132704), (4, 5349528), (6, 3566352), (8, 2674764), (9, 2377568), (12, 1783176), (16, 1337382), (18, 1188784), (24, 891588), (32, 668691), (36, 594392), (48, 445794), (72, 297196), (96, 222897), (144, 148598), (191, 112032), (288, 74299), (382, 56016), (389, 55008), (573, 37344), (764, 28008), (778, 27504), (1146, 18672), (1167, 18336), (1528, 14004), (1556, 13752), (1719, 12448), (2292, 9336), (2334, 9168), (3056, 7002), (3112, 6876), (3438, 6224), (3501, 6112), (4584, 4668)]