21064212

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{1667}}^1$

素因数の和:1699

約数の個数: 72

約数和(自身を含む): 59500896

約数和(自身を除く): 38436684

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 972, 1053, 1404, 1667, 2106, 3159, 3334, 4212, 5001, 6318, 6668, 10002, 12636, 15003, 20004, 21671, 30006, 43342, 45009, 60012, 65013, 86684, 90018, 130026, 135027, 180036, 195039, 260052, 270054, 390078, 405081, 540108, 585117, 780156, 810162, 1170234, 1620324, 1755351, 2340468, 3510702, 5266053, 7021404, 10532106, 21064212]

約数ペア:

[(1, 21064212), (2, 10532106), (3, 7021404), (4, 5266053), (6, 3510702), (9, 2340468), (12, 1755351), (13, 1620324), (18, 1170234), (26, 810162), (27, 780156), (36, 585117), (39, 540108), (52, 405081), (54, 390078), (78, 270054), (81, 260052), (108, 195039), (117, 180036), (156, 135027), (162, 130026), (234, 90018), (243, 86684), (324, 65013), (351, 60012), (468, 45009), (486, 43342), (702, 30006), (972, 21671), (1053, 20004), (1404, 15003), (1667, 12636), (2106, 10002), (3159, 6668), (3334, 6318), (4212, 5001)]