21920376

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{907}}^1$

素因数の和:988

約数の個数: 64

約数和(自身を含む): 58838400

約数和(自身を除く): 36918024

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 53, 57, 76, 106, 114, 152, 159, 212, 228, 318, 424, 456, 636, 907, 1007, 1272, 1814, 2014, 2721, 3021, 3628, 4028, 5442, 6042, 7256, 8056, 10884, 12084, 17233, 21768, 24168, 34466, 48071, 51699, 68932, 96142, 103398, 137864, 144213, 192284, 206796, 288426, 384568, 413592, 576852, 913349, 1153704, 1826698, 2740047, 3653396, 5480094, 7306792, 10960188, 21920376]

約数ペア:

[(1, 21920376), (2, 10960188), (3, 7306792), (4, 5480094), (6, 3653396), (8, 2740047), (12, 1826698), (19, 1153704), (24, 913349), (38, 576852), (53, 413592), (57, 384568), (76, 288426), (106, 206796), (114, 192284), (152, 144213), (159, 137864), (212, 103398), (228, 96142), (318, 68932), (424, 51699), (456, 48071), (636, 34466), (907, 24168), (1007, 21768), (1272, 17233), (1814, 12084), (2014, 10884), (2721, 8056), (3021, 7256), (3628, 6042), (4028, 5442)]