18959928

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{907}}^1$

素因数の和:996

約数の個数: 64

約数和(自身を含む): 51864960

約数和(自身を除く): 32905032

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 67, 78, 104, 134, 156, 201, 268, 312, 402, 536, 804, 871, 907, 1608, 1742, 1814, 2613, 2721, 3484, 3628, 5226, 5442, 6968, 7256, 10452, 10884, 11791, 20904, 21768, 23582, 35373, 47164, 60769, 70746, 94328, 121538, 141492, 182307, 243076, 282984, 364614, 486152, 729228, 789997, 1458456, 1579994, 2369991, 3159988, 4739982, 6319976, 9479964, 18959928]

約数ペア:

[(1, 18959928), (2, 9479964), (3, 6319976), (4, 4739982), (6, 3159988), (8, 2369991), (12, 1579994), (13, 1458456), (24, 789997), (26, 729228), (39, 486152), (52, 364614), (67, 282984), (78, 243076), (104, 182307), (134, 141492), (156, 121538), (201, 94328), (268, 70746), (312, 60769), (402, 47164), (536, 35373), (804, 23582), (871, 21768), (907, 20904), (1608, 11791), (1742, 10884), (1814, 10452), (2613, 7256), (2721, 6968), (3484, 5442), (3628, 5226)]