402548979

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1\times {\mathrm{1013}}^1$

素因数の和:1299

約数の個数: 32

約数和(自身を含む): 623001600

約数和(自身を除く): 220452621

約数列:

[1, 3, 7, 21, 127, 149, 381, 447, 889, 1013, 1043, 2667, 3039, 3129, 7091, 18923, 21273, 56769, 128651, 132461, 150937, 385953, 397383, 452811, 900557, 1056559, 2701671, 3169677, 19168999, 57506997, 134182993, 402548979]

約数ペア:

[(1, 402548979), (3, 134182993), (7, 57506997), (21, 19168999), (127, 3169677), (149, 2701671), (381, 1056559), (447, 900557), (889, 452811), (1013, 397383), (1043, 385953), (2667, 150937), (3039, 132461), (3129, 128651), (7091, 56769), (18923, 21273)]