21190360

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{743}}^1$

素因数の和:808

約数の個数: 64

約数和(自身を含む): 51425280

約数和(自身を除く): 30234920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 92, 115, 124, 155, 184, 230, 248, 310, 460, 620, 713, 743, 920, 1240, 1426, 1486, 2852, 2972, 3565, 3715, 5704, 5944, 7130, 7430, 14260, 14860, 17089, 23033, 28520, 29720, 34178, 46066, 68356, 85445, 92132, 115165, 136712, 170890, 184264, 230330, 341780, 460660, 529759, 683560, 921320, 1059518, 2119036, 2648795, 4238072, 5297590, 10595180, 21190360]

約数ペア:

[(1, 21190360), (2, 10595180), (4, 5297590), (5, 4238072), (8, 2648795), (10, 2119036), (20, 1059518), (23, 921320), (31, 683560), (40, 529759), (46, 460660), (62, 341780), (92, 230330), (115, 184264), (124, 170890), (155, 136712), (184, 115165), (230, 92132), (248, 85445), (310, 68356), (460, 46066), (620, 34178), (713, 29720), (743, 28520), (920, 23033), (1240, 17089), (1426, 14860), (1486, 14260), (2852, 7430), (2972, 7130), (3565, 5944), (3715, 5704)]