21915768

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1787}}^1$

素因数の和:1876

約数の個数: 64

約数和(自身を含む): 63509760

約数和(自身を除く): 41593992

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 73, 84, 146, 168, 219, 292, 438, 511, 584, 876, 1022, 1533, 1752, 1787, 2044, 3066, 3574, 4088, 5361, 6132, 7148, 10722, 12264, 12509, 14296, 21444, 25018, 37527, 42888, 50036, 75054, 100072, 130451, 150108, 260902, 300216, 391353, 521804, 782706, 913157, 1043608, 1565412, 1826314, 2739471, 3130824, 3652628, 5478942, 7305256, 10957884, 21915768]

約数ペア:

[(1, 21915768), (2, 10957884), (3, 7305256), (4, 5478942), (6, 3652628), (7, 3130824), (8, 2739471), (12, 1826314), (14, 1565412), (21, 1043608), (24, 913157), (28, 782706), (42, 521804), (56, 391353), (73, 300216), (84, 260902), (146, 150108), (168, 130451), (219, 100072), (292, 75054), (438, 50036), (511, 42888), (584, 37527), (876, 25018), (1022, 21444), (1533, 14296), (1752, 12509), (1787, 12264), (2044, 10722), (3066, 7148), (3574, 6132), (4088, 5361)]