28356702969

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{421}}^1\times {\mathrm{757}}^1$

素因数の和:1430

約数の個数: 64

約数和(自身を含む): 45857423360

約数和(自身を除く): 17500720391

約数列:

[1, 3, 7, 19, 21, 57, 133, 223, 399, 421, 669, 757, 1263, 1561, 2271, 2947, 4237, 4683, 5299, 7999, 8841, 12711, 14383, 15897, 23997, 29659, 43149, 55993, 88977, 93883, 100681, 167979, 168811, 281649, 302043, 318697, 506433, 657181, 956091, 1181677, 1783777, 1971543, 2230879, 3207409, 3545031, 5351331, 6055243, 6692637, 9622227, 12486439, 18165729, 22451863, 37459317, 42386701, 67355589, 71069431, 127160103, 213208293, 497486017, 1350319189, 1492458051, 4050957567, 9452234323, 28356702969]

約数ペア:

[(1, 28356702969), (3, 9452234323), (7, 4050957567), (19, 1492458051), (21, 1350319189), (57, 497486017), (133, 213208293), (223, 127160103), (399, 71069431), (421, 67355589), (669, 42386701), (757, 37459317), (1263, 22451863), (1561, 18165729), (2271, 12486439), (2947, 9622227), (4237, 6692637), (4683, 6055243), (5299, 5351331), (7999, 3545031), (8841, 3207409), (12711, 2230879), (14383, 1971543), (15897, 1783777), (23997, 1181677), (29659, 956091), (43149, 657181), (55993, 506433), (88977, 318697), (93883, 302043), (100681, 281649), (167979, 168811)]