20819736

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:529

約数の個数: 96

約数和(自身を含む): 65239200

約数和(自身を除く): 44419464

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 101, 126, 168, 202, 252, 303, 404, 409, 504, 606, 707, 808, 818, 909, 1212, 1227, 1414, 1636, 1818, 2121, 2424, 2454, 2828, 2863, 3272, 3636, 3681, 4242, 4908, 5656, 5726, 6363, 7272, 7362, 8484, 8589, 9816, 11452, 12726, 14724, 16968, 17178, 22904, 25452, 25767, 29448, 34356, 41309, 50904, 51534, 68712, 82618, 103068, 123927, 165236, 206136, 247854, 289163, 330472, 371781, 495708, 578326, 743562, 867489, 991416, 1156652, 1487124, 1734978, 2313304, 2602467, 2974248, 3469956, 5204934, 6939912, 10409868, 20819736]

約数ペア:

[(1, 20819736), (2, 10409868), (3, 6939912), (4, 5204934), (6, 3469956), (7, 2974248), (8, 2602467), (9, 2313304), (12, 1734978), (14, 1487124), (18, 1156652), (21, 991416), (24, 867489), (28, 743562), (36, 578326), (42, 495708), (56, 371781), (63, 330472), (72, 289163), (84, 247854), (101, 206136), (126, 165236), (168, 123927), (202, 103068), (252, 82618), (303, 68712), (404, 51534), (409, 50904), (504, 41309), (606, 34356), (707, 29448), (808, 25767), (818, 25452), (909, 22904), (1212, 17178), (1227, 16968), (1414, 14724), (1636, 12726), (1818, 11452), (2121, 9816), (2424, 8589), (2454, 8484), (2828, 7362), (2863, 7272), (3272, 6363), (3636, 5726), (3681, 5656), (4242, 4908)]