21920850

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{6959}}^1$

素因数の和:6984

約数の個数: 72

約数和(自身を含む): 67317120

約数和(自身を除く): 45396270

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 126, 150, 175, 210, 225, 315, 350, 450, 525, 630, 1050, 1575, 3150, 6959, 13918, 20877, 34795, 41754, 48713, 62631, 69590, 97426, 104385, 125262, 146139, 173975, 208770, 243565, 292278, 313155, 347950, 438417, 487130, 521925, 626310, 730695, 876834, 1043850, 1217825, 1461390, 1565775, 2192085, 2435650, 3131550, 3653475, 4384170, 7306950, 10960425, 21920850]

約数ペア:

[(1, 21920850), (2, 10960425), (3, 7306950), (5, 4384170), (6, 3653475), (7, 3131550), (9, 2435650), (10, 2192085), (14, 1565775), (15, 1461390), (18, 1217825), (21, 1043850), (25, 876834), (30, 730695), (35, 626310), (42, 521925), (45, 487130), (50, 438417), (63, 347950), (70, 313155), (75, 292278), (90, 243565), (105, 208770), (126, 173975), (150, 146139), (175, 125262), (210, 104385), (225, 97426), (315, 69590), (350, 62631), (450, 48713), (525, 41754), (630, 34795), (1050, 20877), (1575, 13918), (3150, 6959)]