21099264

素因数分解:

$2^8\times 3^1\times {\mathrm{83}}^1\times {\mathrm{331}}^1$

素因数の和:433

約数の個数: 72

約数和(自身を含む): 57003072

約数和(自身を除く): 35903808

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 83, 96, 128, 166, 192, 249, 256, 331, 332, 384, 498, 662, 664, 768, 993, 996, 1324, 1328, 1986, 1992, 2648, 2656, 3972, 3984, 5296, 5312, 7944, 7968, 10592, 10624, 15888, 15936, 21184, 21248, 27473, 31776, 31872, 42368, 54946, 63552, 63744, 82419, 84736, 109892, 127104, 164838, 219784, 254208, 329676, 439568, 659352, 879136, 1318704, 1758272, 2637408, 3516544, 5274816, 7033088, 10549632, 21099264]

約数ペア:

[(1, 21099264), (2, 10549632), (3, 7033088), (4, 5274816), (6, 3516544), (8, 2637408), (12, 1758272), (16, 1318704), (24, 879136), (32, 659352), (48, 439568), (64, 329676), (83, 254208), (96, 219784), (128, 164838), (166, 127104), (192, 109892), (249, 84736), (256, 82419), (331, 63744), (332, 63552), (384, 54946), (498, 42368), (662, 31872), (664, 31776), (768, 27473), (993, 21248), (996, 21184), (1324, 15936), (1328, 15888), (1986, 10624), (1992, 10592), (2648, 7968), (2656, 7944), (3972, 5312), (3984, 5296)]