21086979172

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{1471}}^1$

素因数の和:1757

約数の個数: 96

約数和(自身を含む): 44091887616

約数和(自身を除く): 23004908444

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 101, 137, 148, 202, 259, 274, 404, 518, 548, 707, 959, 1036, 1414, 1471, 1918, 2828, 2942, 3737, 3836, 5069, 5884, 7474, 10138, 10297, 13837, 14948, 20276, 20594, 26159, 27674, 35483, 41188, 52318, 54427, 55348, 70966, 96859, 104636, 108854, 141932, 148571, 193718, 201527, 217708, 297142, 380989, 387436, 403054, 511969, 594284, 761978, 806108, 1023938, 1039997, 1410689, 1523956, 2047876, 2079994, 2821378, 3583783, 4159988, 5497127, 5642756, 7167566, 7456499, 10994254, 14335132, 14912998, 20354227, 21988508, 29825996, 38479889, 40708454, 52195493, 76959778, 81416908, 104390986, 142479589, 153919556, 208781972, 284959178, 569918356, 753106399, 1506212798, 3012425596, 5271744793, 10543489586, 21086979172]

約数ペア:

[(1, 21086979172), (2, 10543489586), (4, 5271744793), (7, 3012425596), (14, 1506212798), (28, 753106399), (37, 569918356), (74, 284959178), (101, 208781972), (137, 153919556), (148, 142479589), (202, 104390986), (259, 81416908), (274, 76959778), (404, 52195493), (518, 40708454), (548, 38479889), (707, 29825996), (959, 21988508), (1036, 20354227), (1414, 14912998), (1471, 14335132), (1918, 10994254), (2828, 7456499), (2942, 7167566), (3737, 5642756), (3836, 5497127), (5069, 4159988), (5884, 3583783), (7474, 2821378), (10138, 2079994), (10297, 2047876), (13837, 1523956), (14948, 1410689), (20276, 1039997), (20594, 1023938), (26159, 806108), (27674, 761978), (35483, 594284), (41188, 511969), (52318, 403054), (54427, 387436), (55348, 380989), (70966, 297142), (96859, 217708), (104636, 201527), (108854, 193718), (141932, 148571)]