21091488

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19973}}^1$

素因数の和:19997

約数の個数: 48

約数和(自身を含む): 60401376

約数和(自身を除く): 39309888

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 66, 88, 96, 132, 176, 264, 352, 528, 1056, 19973, 39946, 59919, 79892, 119838, 159784, 219703, 239676, 319568, 439406, 479352, 639136, 659109, 878812, 958704, 1318218, 1757624, 1917408, 2636436, 3515248, 5272872, 7030496, 10545744, 21091488]

約数ペア:

[(1, 21091488), (2, 10545744), (3, 7030496), (4, 5272872), (6, 3515248), (8, 2636436), (11, 1917408), (12, 1757624), (16, 1318218), (22, 958704), (24, 878812), (32, 659109), (33, 639136), (44, 479352), (48, 439406), (66, 319568), (88, 239676), (96, 219703), (132, 159784), (176, 119838), (264, 79892), (352, 59919), (528, 39946), (1056, 19973)]