21482916

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:321

約数の個数: 96

約数和(自身を含む): 62619648

約数和(自身を除く): 41136732

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 103, 156, 182, 191, 206, 273, 309, 364, 382, 412, 546, 573, 618, 721, 764, 1092, 1146, 1236, 1337, 1339, 1442, 2163, 2292, 2483, 2674, 2678, 2884, 4011, 4017, 4326, 4966, 5348, 5356, 7449, 8022, 8034, 8652, 9373, 9932, 14898, 16044, 16068, 17381, 18746, 19673, 28119, 29796, 34762, 37492, 39346, 52143, 56238, 59019, 69524, 78692, 104286, 112476, 118038, 137711, 208572, 236076, 255749, 275422, 413133, 511498, 550844, 767247, 826266, 1022996, 1534494, 1652532, 1790243, 3068988, 3580486, 5370729, 7160972, 10741458, 21482916]

約数ペア:

[(1, 21482916), (2, 10741458), (3, 7160972), (4, 5370729), (6, 3580486), (7, 3068988), (12, 1790243), (13, 1652532), (14, 1534494), (21, 1022996), (26, 826266), (28, 767247), (39, 550844), (42, 511498), (52, 413133), (78, 275422), (84, 255749), (91, 236076), (103, 208572), (156, 137711), (182, 118038), (191, 112476), (206, 104286), (273, 78692), (309, 69524), (364, 59019), (382, 56238), (412, 52143), (546, 39346), (573, 37492), (618, 34762), (721, 29796), (764, 28119), (1092, 19673), (1146, 18746), (1236, 17381), (1337, 16068), (1339, 16044), (1442, 14898), (2163, 9932), (2292, 9373), (2483, 8652), (2674, 8034), (2678, 8022), (2884, 7449), (4011, 5356), (4017, 5348), (4326, 4966)]