18739848

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1997}}^1$

素因数の和:2046

約数の個数: 64

約数和(自身を含む): 51788160

約数和(自身を除く): 33048312

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 23, 24, 34, 46, 51, 68, 69, 92, 102, 136, 138, 184, 204, 276, 391, 408, 552, 782, 1173, 1564, 1997, 2346, 3128, 3994, 4692, 5991, 7988, 9384, 11982, 15976, 23964, 33949, 45931, 47928, 67898, 91862, 101847, 135796, 137793, 183724, 203694, 271592, 275586, 367448, 407388, 551172, 780827, 814776, 1102344, 1561654, 2342481, 3123308, 4684962, 6246616, 9369924, 18739848]

約数ペア:

[(1, 18739848), (2, 9369924), (3, 6246616), (4, 4684962), (6, 3123308), (8, 2342481), (12, 1561654), (17, 1102344), (23, 814776), (24, 780827), (34, 551172), (46, 407388), (51, 367448), (68, 275586), (69, 271592), (92, 203694), (102, 183724), (136, 137793), (138, 135796), (184, 101847), (204, 91862), (276, 67898), (391, 47928), (408, 45931), (552, 33949), (782, 23964), (1173, 15976), (1564, 11982), (1997, 9384), (2346, 7988), (3128, 5991), (3994, 4692)]