21000340788

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{474391}}^1$

素因数の和:474453

約数の個数: 96

約数和(自身を含む): 61207953408

約数和(自身を除く): 40207612620

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 31, 34, 42, 51, 62, 68, 84, 93, 102, 119, 124, 186, 204, 217, 238, 357, 372, 434, 476, 527, 651, 714, 868, 1054, 1302, 1428, 1581, 2108, 2604, 3162, 3689, 6324, 7378, 11067, 14756, 22134, 44268, 474391, 948782, 1423173, 1897564, 2846346, 3320737, 5692692, 6641474, 8064647, 9962211, 13282948, 14706121, 16129294, 19924422, 24193941, 29412242, 32258588, 39848844, 44118363, 48387882, 56452529, 58824484, 88236726, 96775764, 102942847, 112905058, 169357587, 176473452, 205885694, 225810116, 250004057, 308828541, 338715174, 411771388, 500008114, 617657082, 677430348, 750012171, 1000016228, 1235314164, 1500024342, 1750028399, 3000048684, 3500056798, 5250085197, 7000113596, 10500170394, 21000340788]

約数ペア:

[(1, 21000340788), (2, 10500170394), (3, 7000113596), (4, 5250085197), (6, 3500056798), (7, 3000048684), (12, 1750028399), (14, 1500024342), (17, 1235314164), (21, 1000016228), (28, 750012171), (31, 677430348), (34, 617657082), (42, 500008114), (51, 411771388), (62, 338715174), (68, 308828541), (84, 250004057), (93, 225810116), (102, 205885694), (119, 176473452), (124, 169357587), (186, 112905058), (204, 102942847), (217, 96775764), (238, 88236726), (357, 58824484), (372, 56452529), (434, 48387882), (476, 44118363), (527, 39848844), (651, 32258588), (714, 29412242), (868, 24193941), (1054, 19924422), (1302, 16129294), (1428, 14706121), (1581, 13282948), (2108, 9962211), (2604, 8064647), (3162, 6641474), (3689, 5692692), (6324, 3320737), (7378, 2846346), (11067, 1897564), (14756, 1423173), (22134, 948782), (44268, 474391)]