21484287

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 35642880

約数和(自身を除く): 14158593

約数列:

[1, 3, 9, 11, 33, 41, 67, 79, 99, 123, 201, 237, 369, 451, 603, 711, 737, 869, 1353, 2211, 2607, 2747, 3239, 4059, 5293, 6633, 7821, 8241, 9717, 15879, 24723, 29151, 30217, 35629, 47637, 58223, 90651, 106887, 174669, 217013, 271953, 320661, 524007, 651039, 1953117, 2387143, 7161429, 21484287]

約数ペア:

[(1, 21484287), (3, 7161429), (9, 2387143), (11, 1953117), (33, 651039), (41, 524007), (67, 320661), (79, 271953), (99, 217013), (123, 174669), (201, 106887), (237, 90651), (369, 58223), (451, 47637), (603, 35629), (711, 30217), (737, 29151), (869, 24723), (1353, 15879), (2211, 9717), (2607, 8241), (2747, 7821), (3239, 6633), (4059, 5293)]