20510532

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{409}}^1$

素因数の和:625

約数の個数: 72

約数和(自身を含む): 59696000

約数和(自身を除く): 39185468

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 199, 252, 398, 409, 597, 796, 818, 1194, 1227, 1393, 1636, 1791, 2388, 2454, 2786, 2863, 3582, 3681, 4179, 4908, 5572, 5726, 7164, 7362, 8358, 8589, 11452, 12537, 14724, 16716, 17178, 25074, 25767, 34356, 50148, 51534, 81391, 103068, 162782, 244173, 325564, 488346, 569737, 732519, 976692, 1139474, 1465038, 1709211, 2278948, 2930076, 3418422, 5127633, 6836844, 10255266, 20510532]

約数ペア:

[(1, 20510532), (2, 10255266), (3, 6836844), (4, 5127633), (6, 3418422), (7, 2930076), (9, 2278948), (12, 1709211), (14, 1465038), (18, 1139474), (21, 976692), (28, 732519), (36, 569737), (42, 488346), (63, 325564), (84, 244173), (126, 162782), (199, 103068), (252, 81391), (398, 51534), (409, 50148), (597, 34356), (796, 25767), (818, 25074), (1194, 17178), (1227, 16716), (1393, 14724), (1636, 12537), (1791, 11452), (2388, 8589), (2454, 8358), (2786, 7362), (2863, 7164), (3582, 5726), (3681, 5572), (4179, 4908)]