21290010

素因数分解:

$2^1\times 3^1\times 5^1\times 7^3\times {\mathrm{2069}}^1$

素因数の和:2100

約数の個数: 64

約数和(自身を含む): 59616000

約数和(自身を除く): 38325990

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 343, 490, 686, 735, 1029, 1470, 1715, 2058, 2069, 3430, 4138, 5145, 6207, 10290, 10345, 12414, 14483, 20690, 28966, 31035, 43449, 62070, 72415, 86898, 101381, 144830, 202762, 217245, 304143, 434490, 506905, 608286, 709667, 1013810, 1419334, 1520715, 2129001, 3041430, 3548335, 4258002, 7096670, 10645005, 21290010]

約数ペア:

[(1, 21290010), (2, 10645005), (3, 7096670), (5, 4258002), (6, 3548335), (7, 3041430), (10, 2129001), (14, 1520715), (15, 1419334), (21, 1013810), (30, 709667), (35, 608286), (42, 506905), (49, 434490), (70, 304143), (98, 217245), (105, 202762), (147, 144830), (210, 101381), (245, 86898), (294, 72415), (343, 62070), (490, 43449), (686, 31035), (735, 28966), (1029, 20690), (1470, 14483), (1715, 12414), (2058, 10345), (2069, 10290), (3430, 6207), (4138, 5145)]