18961888

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{523}}^1$

素因数の和:647

約数の個数: 48

約数和(自身を含む): 41198976

約数和(自身を除く): 22237088

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 103, 176, 206, 352, 412, 523, 824, 1046, 1133, 1648, 2092, 2266, 3296, 4184, 4532, 5753, 8368, 9064, 11506, 16736, 18128, 23012, 36256, 46024, 53869, 92048, 107738, 184096, 215476, 430952, 592559, 861904, 1185118, 1723808, 2370236, 4740472, 9480944, 18961888]

約数ペア:

[(1, 18961888), (2, 9480944), (4, 4740472), (8, 2370236), (11, 1723808), (16, 1185118), (22, 861904), (32, 592559), (44, 430952), (88, 215476), (103, 184096), (176, 107738), (206, 92048), (352, 53869), (412, 46024), (523, 36256), (824, 23012), (1046, 18128), (1133, 16736), (1648, 11506), (2092, 9064), (2266, 8368), (3296, 5753), (4184, 4532)]