21404964

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{617}}^1$

素因数の和:697

約数の個数: 72

約数和(自身を含む): 59179680

約数和(自身を除く): 37774716

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 59, 84, 98, 118, 147, 177, 196, 236, 294, 354, 413, 588, 617, 708, 826, 1234, 1239, 1652, 1851, 2468, 2478, 2891, 3702, 4319, 4956, 5782, 7404, 8638, 8673, 11564, 12957, 17276, 17346, 25914, 30233, 34692, 36403, 51828, 60466, 72806, 90699, 109209, 120932, 145612, 181398, 218418, 254821, 362796, 436836, 509642, 764463, 1019284, 1528926, 1783747, 3057852, 3567494, 5351241, 7134988, 10702482, 21404964]

約数ペア:

[(1, 21404964), (2, 10702482), (3, 7134988), (4, 5351241), (6, 3567494), (7, 3057852), (12, 1783747), (14, 1528926), (21, 1019284), (28, 764463), (42, 509642), (49, 436836), (59, 362796), (84, 254821), (98, 218418), (118, 181398), (147, 145612), (177, 120932), (196, 109209), (236, 90699), (294, 72806), (354, 60466), (413, 51828), (588, 36403), (617, 34692), (708, 30233), (826, 25914), (1234, 17346), (1239, 17276), (1652, 12957), (1851, 11564), (2468, 8673), (2478, 8638), (2891, 7404), (3702, 5782), (4319, 4956)]