399483819

素因数分解:

$3^4\times 7^2\times {\mathrm{251}}^1\times {\mathrm{401}}^1$

素因数の和:678

約数の個数: 60

約数和(自身を含む): 698693688

約数和(自身を除く): 299209869

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 251, 401, 441, 567, 753, 1203, 1323, 1757, 2259, 2807, 3609, 3969, 5271, 6777, 8421, 10827, 12299, 15813, 19649, 20331, 25263, 32481, 36897, 47439, 58947, 75789, 100651, 110691, 142317, 176841, 227367, 301953, 332073, 530523, 704557, 905859, 996219, 1591569, 2113671, 2717577, 4931899, 6341013, 8152731, 14795697, 19023039, 44387091, 57069117, 133161273, 399483819]

約数ペア:

[(1, 399483819), (3, 133161273), (7, 57069117), (9, 44387091), (21, 19023039), (27, 14795697), (49, 8152731), (63, 6341013), (81, 4931899), (147, 2717577), (189, 2113671), (251, 1591569), (401, 996219), (441, 905859), (567, 704557), (753, 530523), (1203, 332073), (1323, 301953), (1757, 227367), (2259, 176841), (2807, 142317), (3609, 110691), (3969, 100651), (5271, 75789), (6777, 58947), (8421, 47439), (10827, 36897), (12299, 32481), (15813, 25263), (19649, 20331)]