20998152

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{683}}^1$

素因数の和:763

約数の個数: 96

約数和(自身を含む): 66156480

約数和(自身を除く): 45158328

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 61, 63, 72, 84, 122, 126, 168, 183, 244, 252, 366, 427, 488, 504, 549, 683, 732, 854, 1098, 1281, 1366, 1464, 1708, 2049, 2196, 2562, 2732, 3416, 3843, 4098, 4392, 4781, 5124, 5464, 6147, 7686, 8196, 9562, 10248, 12294, 14343, 15372, 16392, 19124, 24588, 28686, 30744, 38248, 41663, 43029, 49176, 57372, 83326, 86058, 114744, 124989, 166652, 172116, 249978, 291641, 333304, 344232, 374967, 499956, 583282, 749934, 874923, 999912, 1166564, 1499868, 1749846, 2333128, 2624769, 2999736, 3499692, 5249538, 6999384, 10499076, 20998152]

約数ペア:

[(1, 20998152), (2, 10499076), (3, 6999384), (4, 5249538), (6, 3499692), (7, 2999736), (8, 2624769), (9, 2333128), (12, 1749846), (14, 1499868), (18, 1166564), (21, 999912), (24, 874923), (28, 749934), (36, 583282), (42, 499956), (56, 374967), (61, 344232), (63, 333304), (72, 291641), (84, 249978), (122, 172116), (126, 166652), (168, 124989), (183, 114744), (244, 86058), (252, 83326), (366, 57372), (427, 49176), (488, 43029), (504, 41663), (549, 38248), (683, 30744), (732, 28686), (854, 24588), (1098, 19124), (1281, 16392), (1366, 15372), (1464, 14343), (1708, 12294), (2049, 10248), (2196, 9562), (2562, 8196), (2732, 7686), (3416, 6147), (3843, 5464), (4098, 5124), (4392, 4781)]