21419784

素因数分解:

$2^3\times 3^2\times {\mathrm{61}}^1\times {\mathrm{4877}}^1$

素因数の和:4950

約数の個数: 48

約数和(自身を含む): 58975020

約数和(自身を除く): 37555236

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 61, 72, 122, 183, 244, 366, 488, 549, 732, 1098, 1464, 2196, 4392, 4877, 9754, 14631, 19508, 29262, 39016, 43893, 58524, 87786, 117048, 175572, 297497, 351144, 594994, 892491, 1189988, 1784982, 2379976, 2677473, 3569964, 5354946, 7139928, 10709892, 21419784]

約数ペア:

[(1, 21419784), (2, 10709892), (3, 7139928), (4, 5354946), (6, 3569964), (8, 2677473), (9, 2379976), (12, 1784982), (18, 1189988), (24, 892491), (36, 594994), (61, 351144), (72, 297497), (122, 175572), (183, 117048), (244, 87786), (366, 58524), (488, 43893), (549, 39016), (732, 29262), (1098, 19508), (1464, 14631), (2196, 9754), (4392, 4877)]