21216756

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{2399}}^1$

素因数の和:2484

約数の個数: 48

約数和(自身を含む): 54835200

約数和(自身を除く): 33618444

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 67, 132, 134, 201, 268, 402, 737, 804, 1474, 2211, 2399, 2948, 4422, 4798, 7197, 8844, 9596, 14394, 26389, 28788, 52778, 79167, 105556, 158334, 160733, 316668, 321466, 482199, 642932, 964398, 1768063, 1928796, 3536126, 5304189, 7072252, 10608378, 21216756]

約数ペア:

[(1, 21216756), (2, 10608378), (3, 7072252), (4, 5304189), (6, 3536126), (11, 1928796), (12, 1768063), (22, 964398), (33, 642932), (44, 482199), (66, 321466), (67, 316668), (132, 160733), (134, 158334), (201, 105556), (268, 79167), (402, 52778), (737, 28788), (804, 26389), (1474, 14394), (2211, 9596), (2399, 8844), (2948, 7197), (4422, 4798)]