21357228

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{523}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 51762816

約数和(自身を除く): 30405588

約数列:

[1, 2, 3, 4, 6, 12, 41, 82, 83, 123, 164, 166, 246, 249, 332, 492, 498, 523, 996, 1046, 1569, 2092, 3138, 3403, 6276, 6806, 10209, 13612, 20418, 21443, 40836, 42886, 43409, 64329, 85772, 86818, 128658, 130227, 173636, 257316, 260454, 520908, 1779769, 3559538, 5339307, 7119076, 10678614, 21357228]

約数ペア:

[(1, 21357228), (2, 10678614), (3, 7119076), (4, 5339307), (6, 3559538), (12, 1779769), (41, 520908), (82, 260454), (83, 257316), (123, 173636), (164, 130227), (166, 128658), (246, 86818), (249, 85772), (332, 64329), (492, 43409), (498, 42886), (523, 40836), (996, 21443), (1046, 20418), (1569, 13612), (2092, 10209), (3138, 6806), (3403, 6276)]