21681468

素因数分解:

$2^2\times 3^2\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 56805840

約数和(自身を除く): 35124372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 67, 89, 101, 134, 178, 201, 202, 267, 268, 303, 356, 402, 404, 534, 603, 606, 801, 804, 909, 1068, 1206, 1212, 1602, 1818, 2412, 3204, 3636, 5963, 6767, 8989, 11926, 13534, 17889, 17978, 20301, 23852, 26967, 27068, 35778, 35956, 40602, 53667, 53934, 60903, 71556, 80901, 81204, 107334, 107868, 121806, 161802, 214668, 243612, 323604, 602263, 1204526, 1806789, 2409052, 3613578, 5420367, 7227156, 10840734, 21681468]

約数ペア:

[(1, 21681468), (2, 10840734), (3, 7227156), (4, 5420367), (6, 3613578), (9, 2409052), (12, 1806789), (18, 1204526), (36, 602263), (67, 323604), (89, 243612), (101, 214668), (134, 161802), (178, 121806), (201, 107868), (202, 107334), (267, 81204), (268, 80901), (303, 71556), (356, 60903), (402, 53934), (404, 53667), (534, 40602), (603, 35956), (606, 35778), (801, 27068), (804, 26967), (909, 23852), (1068, 20301), (1206, 17978), (1212, 17889), (1602, 13534), (1818, 11926), (2412, 8989), (3204, 6767), (3636, 5963)]