19719816

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{419}}^1$

素因数の和:518

約数の個数: 64

約数和(自身を含む): 51710400

約数和(自身を除く): 31990584

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 53, 74, 106, 111, 148, 159, 212, 222, 296, 318, 419, 424, 444, 636, 838, 888, 1257, 1272, 1676, 1961, 2514, 3352, 3922, 5028, 5883, 7844, 10056, 11766, 15503, 15688, 22207, 23532, 31006, 44414, 46509, 47064, 62012, 66621, 88828, 93018, 124024, 133242, 177656, 186036, 266484, 372072, 532968, 821659, 1643318, 2464977, 3286636, 4929954, 6573272, 9859908, 19719816]

約数ペア:

[(1, 19719816), (2, 9859908), (3, 6573272), (4, 4929954), (6, 3286636), (8, 2464977), (12, 1643318), (24, 821659), (37, 532968), (53, 372072), (74, 266484), (106, 186036), (111, 177656), (148, 133242), (159, 124024), (212, 93018), (222, 88828), (296, 66621), (318, 62012), (419, 47064), (424, 46509), (444, 44414), (636, 31006), (838, 23532), (888, 22207), (1257, 15688), (1272, 15503), (1676, 11766), (1961, 10056), (2514, 7844), (3352, 5883), (3922, 5028)]