20872908

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{733}}^1$

素因数の和:863

約数の個数: 72

約数和(自身を含む): 60916128

約数和(自身を除く): 40043220

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 113, 126, 226, 252, 339, 452, 678, 733, 791, 1017, 1356, 1466, 1582, 2034, 2199, 2373, 2932, 3164, 4068, 4398, 4746, 5131, 6597, 7119, 8796, 9492, 10262, 13194, 14238, 15393, 20524, 26388, 28476, 30786, 46179, 61572, 82829, 92358, 165658, 184716, 248487, 331316, 496974, 579803, 745461, 993948, 1159606, 1490922, 1739409, 2319212, 2981844, 3478818, 5218227, 6957636, 10436454, 20872908]

約数ペア:

[(1, 20872908), (2, 10436454), (3, 6957636), (4, 5218227), (6, 3478818), (7, 2981844), (9, 2319212), (12, 1739409), (14, 1490922), (18, 1159606), (21, 993948), (28, 745461), (36, 579803), (42, 496974), (63, 331316), (84, 248487), (113, 184716), (126, 165658), (226, 92358), (252, 82829), (339, 61572), (452, 46179), (678, 30786), (733, 28476), (791, 26388), (1017, 20524), (1356, 15393), (1466, 14238), (1582, 13194), (2034, 10262), (2199, 9492), (2373, 8796), (2932, 7119), (3164, 6597), (4068, 5131), (4398, 4746)]