215112813

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 334233600

約数和(自身を除く): 119120787

約数列:

[1, 3, 19, 23, 31, 57, 67, 69, 79, 93, 201, 237, 437, 589, 713, 1273, 1311, 1501, 1541, 1767, 1817, 2077, 2139, 2449, 3819, 4503, 4623, 5293, 5451, 6231, 7347, 13547, 15879, 29279, 34523, 39463, 40641, 46531, 47771, 56327, 87837, 100567, 103569, 118389, 121739, 139593, 143313, 164083, 168981, 301701, 365217, 492249, 907649, 1070213, 2313041, 2722947, 3117577, 3210639, 3773909, 6939123, 9352731, 11321727, 71704271, 215112813]

約数ペア:

[(1, 215112813), (3, 71704271), (19, 11321727), (23, 9352731), (31, 6939123), (57, 3773909), (67, 3210639), (69, 3117577), (79, 2722947), (93, 2313041), (201, 1070213), (237, 907649), (437, 492249), (589, 365217), (713, 301701), (1273, 168981), (1311, 164083), (1501, 143313), (1541, 139593), (1767, 121739), (1817, 118389), (2077, 103569), (2139, 100567), (2449, 87837), (3819, 56327), (4503, 47771), (4623, 46531), (5293, 40641), (5451, 39463), (6231, 34523), (7347, 29279), (13547, 15879)]