21204291204

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{150989}}^1$

素因数の和:151129

約数の個数: 72

約数和(自身を含む): 55400042880

約数和(自身を除く): 34195751676

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 83, 94, 141, 166, 188, 249, 282, 332, 423, 498, 564, 747, 846, 996, 1494, 1692, 2988, 3901, 7802, 11703, 15604, 23406, 35109, 46812, 70218, 140436, 150989, 301978, 452967, 603956, 905934, 1358901, 1811868, 2717802, 5435604, 7096483, 12532087, 14192966, 21289449, 25064174, 28385932, 37596261, 42578898, 50128348, 63868347, 75192522, 85157796, 112788783, 127736694, 150385044, 225577566, 255473388, 451155132, 589008089, 1178016178, 1767024267, 2356032356, 3534048534, 5301072801, 7068097068, 10602145602, 21204291204]

約数ペア:

[(1, 21204291204), (2, 10602145602), (3, 7068097068), (4, 5301072801), (6, 3534048534), (9, 2356032356), (12, 1767024267), (18, 1178016178), (36, 589008089), (47, 451155132), (83, 255473388), (94, 225577566), (141, 150385044), (166, 127736694), (188, 112788783), (249, 85157796), (282, 75192522), (332, 63868347), (423, 50128348), (498, 42578898), (564, 37596261), (747, 28385932), (846, 25064174), (996, 21289449), (1494, 14192966), (1692, 12532087), (2988, 7096483), (3901, 5435604), (7802, 2717802), (11703, 1811868), (15604, 1358901), (23406, 905934), (35109, 603956), (46812, 452967), (70218, 301978), (140436, 150989)]