21698950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:302

約数の個数: 96

約数和(自身を含む): 52496640

約数和(自身を除く): 30797690

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 25, 26, 35, 38, 50, 65, 70, 91, 95, 130, 133, 175, 182, 190, 247, 251, 266, 325, 350, 455, 475, 494, 502, 650, 665, 910, 950, 1235, 1255, 1330, 1729, 1757, 2275, 2470, 2510, 3263, 3325, 3458, 3514, 4550, 4769, 6175, 6275, 6526, 6650, 8645, 8785, 9538, 12350, 12550, 16315, 17290, 17570, 22841, 23845, 32630, 33383, 43225, 43925, 45682, 47690, 61997, 66766, 81575, 86450, 87850, 114205, 119225, 123994, 163150, 166915, 228410, 238450, 309985, 333830, 433979, 571025, 619970, 834575, 867958, 1142050, 1549925, 1669150, 2169895, 3099850, 4339790, 10849475, 21698950]

約数ペア:

[(1, 21698950), (2, 10849475), (5, 4339790), (7, 3099850), (10, 2169895), (13, 1669150), (14, 1549925), (19, 1142050), (25, 867958), (26, 834575), (35, 619970), (38, 571025), (50, 433979), (65, 333830), (70, 309985), (91, 238450), (95, 228410), (130, 166915), (133, 163150), (175, 123994), (182, 119225), (190, 114205), (247, 87850), (251, 86450), (266, 81575), (325, 66766), (350, 61997), (455, 47690), (475, 45682), (494, 43925), (502, 43225), (650, 33383), (665, 32630), (910, 23845), (950, 22841), (1235, 17570), (1255, 17290), (1330, 16315), (1729, 12550), (1757, 12350), (2275, 9538), (2470, 8785), (2510, 8645), (3263, 6650), (3325, 6526), (3458, 6275), (3514, 6175), (4550, 4769)]