21494004

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^2$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 59467968

約数和(自身を除く): 37973964

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 41, 42, 79, 82, 84, 123, 158, 164, 237, 246, 287, 316, 474, 492, 553, 574, 861, 948, 1106, 1148, 1659, 1722, 2212, 3239, 3318, 3444, 6241, 6478, 6636, 9717, 12482, 12956, 18723, 19434, 22673, 24964, 37446, 38868, 43687, 45346, 68019, 74892, 87374, 90692, 131061, 136038, 174748, 255881, 262122, 272076, 511762, 524244, 767643, 1023524, 1535286, 1791167, 3070572, 3582334, 5373501, 7164668, 10747002, 21494004]

約数ペア:

[(1, 21494004), (2, 10747002), (3, 7164668), (4, 5373501), (6, 3582334), (7, 3070572), (12, 1791167), (14, 1535286), (21, 1023524), (28, 767643), (41, 524244), (42, 511762), (79, 272076), (82, 262122), (84, 255881), (123, 174748), (158, 136038), (164, 131061), (237, 90692), (246, 87374), (287, 74892), (316, 68019), (474, 45346), (492, 43687), (553, 38868), (574, 37446), (861, 24964), (948, 22673), (1106, 19434), (1148, 18723), (1659, 12956), (1722, 12482), (2212, 9717), (3239, 6636), (3318, 6478), (3444, 6241)]